Homemade dehumidifier for home. How to make a dehumidifier for an apartment yourself. Household dehumidifier for home

Any air conditioning equipment is quite an expensive item. Dehumidifier is no exception. For family budget spending several thousand or even tens of thousands of rubles can be a significant blow. The presence of this device in the apartment - important condition maintaining a favorable microclimate throughout the year.

An air dryer is a piece of equipment necessary to maintain a favorable microclimate. The device can be made by hand

If there is not enough money to purchase equipment in the store, the way out of the situation is quite simple. You just need to know how to make a dehumidifier with your own hands.

Harm of high humidity in the room

It is known that the concentration of moisture in the air has a significant impact on human health. Excess moisture is harmful not only to people and pets, but also to buildings, furniture, equipment and other items.

What harm does excess moisture in the room in practice?

The appearance and spread of mold and fungus.
Decreased immunity, increased frequency of colds.
Deterioration of breathing, development of allergic processes.
Heavier exposure to high temperatures in summer.
Destruction wooden furniture and leather goods.
Peeling off the walls of the wallpaper (mold and fungus develop under them).
Damage to floor coverings.
Destruction of finishing materials, plaster, drywall.
Breakdowns of household and computer equipment.

For the active spread of mold and fungus, a combination of two factors is needed: high humidity and high temperature. Such a microclimate is typical for many houses and apartments, and such conditions can be maintained all year round. At this time, there is a lot of precipitation and there is a high probability of heating the room, through natural exposure to the sun or with the help of heating devices.

Fungus and mold form most often on the walls. Favorable conditions for their rapid spread is the temperature above 20 degrees and the humidity of about 80%. In such conditions, the formation of new foci of mold and the growth of old ones on the walls occurs rapidly. These processes are visible to the naked eye.

The device and principle of operation of a household desiccant

Today on sale you can find a wide variety of models of household and industrial dehumidifiers. They differ in functionality, efficiency, reliability, durability and cost.

There are portable and stationary dehumidifiers. Mobile devices are easy to use, as they can be quickly installed in the right room. But stationary devices are characterized by higher performance. They are usually wall mounted.

A typical desiccant consists of the following parts:

Fan powered by an electric motor.
Evaporator (cold heat exchanger) - a radiator with a low surface temperature. Coolant (freon) circulates through the radiator.
A container for collecting condensate, which accumulates and flows down the walls of the evaporator.
Drain tube to remove fluid from the device.
Condenser (hot heat exchanger). It is located at the “outlet” of air from the device. Raises the air temperature to the desired values, so as not to "freeze" the room.
Control panel that regulates the intensity and level of condensation, temperature regime outgoing air.

The principle of operation of dehumidifiers is based on the condensation of moisture from the air. The device works as follows:

With the help of fans, air from the room is drawn into the device.
Air enters the evaporator. Due to a sharp temperature drop, moisture condenses (passes from a gaseous to a liquid state).
Drops of the resulting liquid flow down the evaporator tubes into a special collection container. When a certain level is reached, the water is discharged from the dryer using drain pipes.
The dried air passes through a radiator with a high temperature and, before leaving the room, is heated to the desired temperature.
The room is saturated with dry and warm air.

Homemade dehumidifier options

To make a dehumidifier for an apartment with your own hands, you need to understand the principles by which the device works. The workflow is supported by one of three principles:

Heating - increasing the temperature of the air.
Absorption is the physical process of concentration of dissolved water at the contact surface of two phases (gaseous and solid/liquid).
Condensation is the process by which a substance changes from a gaseous to a liquid state.

To do homemade dehumidifier, you need to create a system that can create one of the specified processes. It would seem that the easiest way to remove moisture from the room is simple heating. But elevated temperatures and dry air will create at least serious problems, how high humidity. Therefore, it is worth considering options with condensation or absorption.

A homemade device can be effective, but you should carefully monitor that the concentration of moisture in the air does not drop to critical parameters.

If factory dehumidifiers have humidity control sensors, then when making a device with your own hands, you should take care of solving this issue.

The best way out of the situation is to buy a hygrometer. This device, designed to measure the level of humidity in the room, will allow you to reliably control the situation.

Making an absorption dehumidifier with your own hands

To make a simple device for removing moisture by absorption, you will need the following items:

To make an absorption dryer, you need silica gel

Two plastic bottles, each with a volume of at least 2 liters.
Nail, knitting needle, awl or needle.
Lighter or matches.
Gloves.
Knife, scissors.
absorbent. The best option- silica gel. These dried gel fractions are excellent at absorbing moisture. The advantage of silica gel is its repeated use without loss of properties. The substance is dried after use and is ready for use again. For a bottle dryer, about 250 grams of absorbent will suffice.
Fan. A USB fan or cooler used in computer cooling systems is suitable. The fan can be powered by a USB drive or Charger from mobile phone. There are options for arranging the working mechanism on a battery or batteries. It all depends on available materials, capabilities and skills.

Sequencing:

Holes are made in one of the bottles using a heated nail. Care should be taken when heating the nail, to avoid accidental burns, it is worth using fabric gloves.
A bottle with holes is cut with a knife into two identical halves.
The second half is placed in the bottom half of the bottle with holes so that the neck is pointing down. A lid with numerous holes made must be screwed onto the neck. A heated awl or needle is suitable for this.
The existing absorbent is poured into the upper half of the bottle.
The bottom of the second bottle is cut off.
A small fan is placed in the tank, which will drive air towards the cut bottom. The fan is placed at a distance of 8-10 cm from the cut bottom. A cap is twisted from the neck to ensure air flow to the fan.
A container with a fan is carefully put on a bottle of absorbent. The joint is carefully rewound with insulating tape for sealing.

Homemade air dryer is ready. A homemade bottle dehumidifier will allow you to remove moisture from the air quietly and efficiently.

Making a condenser dehumidifier from the refrigerator

This method is more complicated, but it is also easy to find the necessary components for it. The basis of the design will be old refrigerator. It must be in working order.

What will be needed?

The basis of the design of the condenser dryer is an old refrigerator

Plexiglas sheets (thickness not less than 3 mm).
Fan. A power of about 100 watts is enough.
Pressure plastic grate.
Self-tapping screws.
Screwdriver.
Screwdriver.
Cutter or hacksaw for metal.

Sequencing:

From the freezer and refrigerator compartments of the refrigerator, the doors are carefully dismantled. Most models provide for the removal of doors, so these steps will not be difficult.
Sheets of plexiglass are measured and cut according to the size of the doors.
A hole is cut at a distance of 35 cm from the edges of the Plexiglas plate. It will serve to install the fan. The dimensions of the hole must correspond to the dimensions of the pressure plastic grate.
Mounted fan and grille. Self-tapping screws are used for fixing. The fan should stand in such a way that air is blown through the grill into the refrigerator.
Holes are drilled in the upper part of the plexiglass. The total area of the openings must be equal to the size occupied by the fan.
Plexiglas is mounted in place of the doors. Silicone or insulating tape used for sealing.

After completing the work, it remains to turn on the refrigerator and fan. Air will be drawn by the fan into the compartment with the compressor running. Here the air is dried and removed through the holes in the Plexiglas.

Such a device, with proper installation, can reduce the humidity in the room by 10%.

In addition to dehumidification, such a device from the refrigerator works well for cooling the air in the room.

A large number of odor absorbers sold in stores in abundance often do not solve the problems of housewives. No one can say with accuracy what components the product is made of, how effective and safe it is. Therefore, it is better to make an odor absorber yourself. It's simple, fast and inexpensive. And most importantly - you can not worry about the quality and safety.

Sources of unpleasant odors in the apartment

The problem of the appearance of unpleasant odors in the kitchen and in the refrigerator is relevant for every housewife. But in addition to these rooms, there are other places in the house where extraneous “flavors” may appear: a bathroom, closets, an entrance hall, corners loved by pets.

Kitchen.

This is where undesirable “flavors” most often occur. Daily cooking, trash can drain holes, refrigerator - all this cannot but affect the general atmosphere of the room.

Bathroom.

In the toilet and bathroom, odors can appear due to dampness, poor ventilation systems, and the presence of cat litter boxes.

Cabinets, dressers.

Closed cabinets can become sources bad smell. And here, in addition to getting rid of it, it is desirable to make minimal aromatization.

Entrance hall with shoe cabinets.

The hallway is "at risk" because of the shoes. A large number of shoes, boots and boots will sooner or later make you draw attention to yourself.

How do indoor odor neutralizers work?

First of all, you need to know that the only 100% way to deal with odors is to maintain cleanliness in the house, timely cleaning of all sources of "aromas". Do not store perishable foods in the refrigerator for a long time and rarely take out the trash. However, in some cases it is still worth resorting to the help of professional absorbers.

As a rule, odor neutralizers sold in retail chains are based on activated carbon or natural mineral zeolite.

Chemical properties activated carbon allows it to absorb molecules of a certain size and thus absorb odor. Depending on the specifics of the smell, one or another coal is used.

Why are coal and zeolite the main absorbers for domestic purposes? This is due to their environmental friendliness and safety for human health. These are absolutely natural products created by nature itself. In addition, they are convenient to use.

4 natural remedies that kill odor

For "master's" tasks in the kitchen, the favorites are 4 natural means of neutralizing unpleasant odors.

Activated carbon.

One of the most effective means to combat unwanted odors is activated carbon. It is this material that is used in the manufacture of most odor absorbers for refrigerators and carbon filters for them. Learn more about coal as an air purifier. Due to its features, it is inexpensive, convenient and natural remedy absorbs odor molecules.

Baking soda.

Neutralizes and disinfects. Our grandmothers successfully used soda when food spoiled in refrigerators.

Vinegar.

Also a tool from the arsenal of the older generation, which continues to be fast and effective. It is often recommended to wash refrigerators and microwaves with water and vinegar.

Zeolite.

A natural mineral that perfectly copes with the task assigned to it. Zeolite is used not only in refrigerators. It is an excellent pet litter, water treatment, filters, etc.

How to make a DIY refrigerator odor absorber

Taking advantage of this small master class, every housewife can make such an effective and pretty odor absorber for the refrigerator in just ten minutes. And the materials for its manufacture are absolutely in every home.

The final product will very much resemble candy. As a result, it will not only fight unpleasant odors, but also delight its own. appearance. What will be needed? Just 3 things:

- several activated charcoal tablets;

– porous nonwoven fabric or any mesh material;

– colorful ribbon for tying corners.

As a material, it is better to use spunlace. It is lightweight, has excellent absorbent properties, in general, fully meets the task. Spunlace is often used to make napkins, medical gowns, etc.

To make an absorbent candy, first lay out 4-7 tablets of activated charcoal in a “sausage” way.

We tie the corners of our candy.

All! Sweets are ready.

You can use bamboo charcoal - it is also a high quality absorbent.

Now you can put our homemade odor absorber in the refrigerator. It not only performs its direct function, but, unlike the same soda, has a nice and original appearance.

Here is another way in the form of a bird.

Here's another way to make a bird-shaped refrigerator odor absorber.

Aromatization with natural products

In some cases, in addition to neutralizing the unpleasant odor, a light aromatization is required.

For example, after cleaning the cabinets, it is recommended to use aromatic products. Not required to apply aerosol fresheners air. You can use natural remedies. Lavender sachet will not only fill closed space easy pleasant aroma, but will also successfully fight the appearance of moths. Lemon and orange peel, cinnamon sticks perfectly flavor the kitchen.

You can drop essential oils on a piece of cotton wool and leave it on the cabinet shelves. Making your own air freshener spray is easy, all you need to do is mix water and a few drops of the desired essential oil.

The hallway and shoe cabinets are best scented with zeolite. To do this, just drop an essential oil or fragrance on the filler and leave it in the right place.

Unstable humidity creates discomfort both indoors and outdoors, so a dehumidifier is a necessary thing in modern world. Damp air disables wooden interior items, parquet, wallpaper begins to lag behind the walls, mold appears and bad smell. In such a situation, there is one way out - to dry the atmosphere either with industrial devices or with your own hands.

You can control the temperature and humidity in a banal way - regularly ventilate the room. This works when it is +30 and above outside, and if it constantly rains, then you should use store equipment.

There are four types of household dehumidifiers in the apartment:

Adsorption. This type of absorber functions due to the adsorbent with which the device is filled.
Evaporative or compression. Wet air settles on a cold surface, where it turns into a liquid and, flowing down the tube, is collected in a special container. The lower the temperature, the more productive the process. In the warm season, technology can cause inconvenience, as the atmosphere in the room changes by several degrees and becomes higher.
Membrane. The device is designed to dry up a small volume of the atmosphere. The essence of the device is as follows: water molecules are removed at the moment when compressed air passes through the membrane. The main advantage of this class of equipment is the lack of connection to the network, compactness, and no trap is used to collect condensate. Of the minuses - the natural loss of air up to 20%.
Assimilation. The principle of operation is as follows: when warm air displaced, replaced by cool. It is in it that the moisture content is much less according to the laws of physics. Negative side appliance is low performance (not suitable for cold and cold high humidity climate), consumes a significant amount of energy, and the cost leaves much to be desired. The price tag for it starts from 400,000 rubles and above.

The consumer market is diverse both technically and financially. Everyone can pick great option in the store and dehumidify the air in the room. And someone will not like industrial heat exchangers at all, and he will want to make the device on his own.

Overview of typical home dehumidifiers

The first models, like computers, had an unattractive appearance, their size was huge.

To date modern market household appliances offers the buyer:

original design;
streamlined shapes;
minimum dimensions;
choice of mounting (wall, floor, built-in ventilation duct);
remote control;
metal or plastic case;
the presence of a display;
smart logic, equipped with filling and temperature indicators.

More powerful and expensive devices have a built-in hygrostat that can raise the humidity to a specific level.

A budget option The unit is presented in a compact design. Neoclima ND-10AH processes 10 liters per day compressed air and is able to dry a room up to 48 sq.m. The package includes a capacious tank for collecting condensate with a volume of 1.5 liters. There are also filters to clean the air passing through the dryer. Electronic control and indicators (power supply, filling the container, determining the level of humidity at the time of operation of the device) only add advantages to the device, which already costs around 10 thousand rubles.

Medium-class equipment has increased productivity and is able to overtake up to 30 liters of liquid within 24 hours. The noise level, for example, for the Ballu BDH-30L model, is insignificant and equals 45 dB. Regardless of the temperature environment(from +5 C o to +32 C o) stable operation is ensured. It uses a safety refrigerant. The cost of the device does not exceed 20 thousand rubles.

One of the expensive heat exchangers for home use belongs to Stadler Form A-040E Al. It cleans 60 m 2 and 20 liters of atmosphere from moisture, bacteria, fungi and dust per day. A capacious tank of 4.6 liters allows you to drain the accumulated liquid less often. The presence of a display, hygrostat and reliable mechanical control facilitates the operation process. This pleasure costs more than 40 thousand rubles.

In every city and home appliance store, both condensation-type dehumidifiers are presented, and an adsorption version can be bought for household use. For example, Master Dha 10. Instead of refrigerant, carbon filter. It passes through itself up to 200 m 3 / h of the atmosphere. The separated liquid accumulates in a tank of 3.5 liters. Provides for drying clothes. The unit will cost 15 thousand rubles.

Without knowledge of the laws of physics, we cannot do here. The basic principle of operation of the condensing apparatus is that water vapor, settling on a cold object, is converted into condensate, which flows into a container through a special outlet, and air is heated by a second heat exchanger and exits into external environment. Therefore, a device of this class is referred to as a refrigeration or condensing type.

From what household appliances can you create a dehumidifier for an apartment with your own hands? The most approximate device in terms of the manner of operation is refrigerators compartment. You will need any old but functioning refrigerator.

You will also need to prepare in advance:

plexiglass - cut to the size of the freezer;
a dozen self-tapping screws for metal;
a couple of household fans for exhaust system;
silicone sealant;
cut rubber hose;
old household heater.

The materials are ready.

Let's start assembling:

We adjust the sheet of plexiglass to the dimensions of the freezer.
We install the first fan on top of the workpiece. It will be designed for blowing and the other from below - for blowing.
We cut holes for air intake and exhaust. Don't forget to make a hole for drain hose. It will look good at the bottom of the design.
We fix the plexiglass cover with self-tapping screws in place of the freezer door.
We pass seams, cracks and fastening places with sealant.
Everything is ready, you can start.

Why do you need a heater? Now we have air conditioning, and if before homemade device install thermal curtain, but so that the outgoing air hits it. Now it will definitely be possible to drain square meters.

Adsorption unit for the house from improvised means

An easy way to make a homemade desiccant is to use a sorbent.

To dry the air in the apartment using such a device, you will need:

A pair of 2 liter plastic bottles.
We make many small holes at the bottom of one container using a heated awl or knitting needle.
We divide this workpiece into two parts.
In a similar way, we make small holes in the lid of the same bottle.
We insert the half with the neck with the stopper down into the part with holes.
We fall asleep in the resulting device adsorber.
At the second vessel, we first cut off the bottom, and then, stepping back 10 cm from the cut edge, we install the fan. In this case, a computer propeller is perfect, which, in order to sit securely, is fixed with glue gun.
This design is mounted on a vessel with an adsorber. The place of docking is processed with adhesive tape.
In order for the atmosphere to flow into a home-made air dryer, the lid is removed from the second container.

As a reagent, it is best to use a material that perfectly adsorbs - silica gel. After a single use, dry it in a preheated oven. This will restore its properties.

Thus, it turned out to be an excellent device for home use, which effectively fights excess moisture and makes almost no noise. The device is powered from a USB port or from a conventional mobile phone charger. The fan promotes the passage of a moist air stream through the adsorber, draining it. Then, through the miniature holes made in the bottom of the bottle, dry air will come out.

Now you know how to make a dehumidifier with your own hands from improvised means. It turns out that special skills are not required for this process. It is enough to have an old but working freezer, or know where moisture-absorbing substances are sold.

More about the adsorber

As already noted, silica gel has a drying effect - this is one of the few products that looks like light matte granules of polysilicic acid. They perfectly absorb moisture and dry quickly. These qualities make the adsorber an indispensable chemical reagent in the home environment, and it is intended for repeated use.

high class safety guarantees the quality of the substance. It does not crumble and does not emit vapors that adversely affect the human body.

There are several types of reagents:

Waterproof W.S.
Large, with small pores, designed for use at a humidity of less than 70% (KSMG - coarse silica gel, finely porous granular).
Large, with large pores, designed for use at a humidity of more than 80% (KSKG - large granular silica gel).
Microporous (a reagent that is used in production).
Activated (ASKG - activated coarse granular silica gel).

To date, there should be no problems with its acquisition. A variety of varieties, price range allows you to choose the best option via the Internet. On average, the price per kilogram is in the range from 50 to 160 rubles. The budget and most optimal option is KSMG or KSKG, the cost starts from 55 rubles.

Device for determining the level of humidity in the room

How to dry the atmosphere in the house, the question was highlighted, but how to control the percentage of moisture in the room? Industrial devices have programmed temperature control sensors and atmospheric pressure. But what if the air is dried with a homemade device? You can adapt the thermometer, but it is difficult to trust its data. It also makes no sense if the goal is to measure the level of moisture.

There is a wide range of hygrometers available in retail stores and online. The choice of the buyer is offered arrow or digital device. If you take a closer look at the settings of your smartphone or with model range hours, then for sure they will show a humidity level controller.

Remember that too dry climate also adversely affects general state health. Apart from malicious viruses and bacteria, we are surrounded by beneficial microorganisms.

With the help of a hygrometer, it is possible to determine the feasibility of purifying the air in the room. The critical indicator at which mold develops, fungus is 80% or more. With such data, it is necessary to dry the air in the apartment, and sometimes, depending on the weather, it is recommended to actively use an atmospheric humidifier. The cost of an electronic multifunctional device in a store is about 2000 rubles.

Create a favorable microclimate with my own hands using a household dehumidifier. Industrial devices are also available to every consumer.

Fluctuations in temperature and humidity both indoors and outdoors create uncomfortable conditions for living in an apartment. The best way out of this situation is to install an air dryer. Industrial option is not cheap, so today we will talk about how to make a dehumidifier for an apartment with your own hands.

Why do you need a dehumidifier in your apartment?

The most unwanted and unexpected guests in our home are mold and fungus. Their spores are constantly floating around, but most of the time they are in a dormant state, because they need certain conditions to activate:

humidity;
high room temperature.

A temperature above 20 degrees Celsius is sufficient when relative humidity 80%, so that you can see with the naked eye the growth of mold and fungus colonies on the walls of the rooms. And why in this case, for example, your neighbor does not have such troubles? The answer is simple: the air temperature in all apartments is most often the same, but the humidity can vary greatly.

Air dryers

In the fight against the effects of dampness, you can, of course, significantly lower the temperature in the apartment. But who wants to live in constant cold? In this regard, the best option is to install an air dryer.

Among other things, he will guard the health of the residents of the apartment. The body's immunity is directly dependent on the humidity of the surrounding air: the drier it is, the more difficult it is for harmful bacteria and microbes to multiply.

Dehumidification will also get rid of sweat on the windows.

Operating principle

Modern air dryers are represented by many models, which can vary significantly from each other. The first difference is the working volume, that is, the amount of water filtered by the device from the air. This parameter is measured in liters per day (24 hours).

To choose a device with the optimal volume, consider the size of the room in which it will be installed. Pay attention to the price of equipment. How more volume the dehumidifier, the more expensive it is, but such a device will require less maintenance.

Dehumidifiers are portable and stationary. The first are mobile, you can use them in different rooms if necessary. Stationary mounted on the wall, their carrying is not possible, but they have greater performance.

The principle of operation of the dehumidifier is based on the change in humidity due to its condensation. Air is supplied from the room with the help of fans into the device. There it passes through the evaporator, which is a radiator, the temperature of which is lower than the air temperature in the room. Moisture condenses due to this temperature difference.

The simplest air dryer circuit

Drops of condensate flow down and are collected in a special container. After passing through the evaporator and cooling, the air is heated and fed into the outlet, from where it returns to the room already dry and warm.

Note! When using such a dehumidifier, you need to make sure that a quality system is equipped in the building. forced ventilation, which gives Fresh air into the room and selects mixed.

Scheme dehumidifier air

Such dryers are often used in the following cases:

to prevent fogging of windows in the premises;
to improve the comfort level of everyday life;
when carrying out repair work.

Any Decoration Materials during repairs, when using a dehumidifier, they dry much faster. And the technology does not suffer at all: the temperature in the room remains the same.

Algorithm for creating a device with your own hands

Air dehumidification is provided by three simple principles:

heating;
adsorption;
condensation.

It would seem that with the help of heating the easiest way to dry the air in the room. But in fact, no one likes to constantly be in an apartment that is too hot. Therefore, we will consider the following two options: adsorption and condensation of moisture. You can make dehumidifiers based on these principles yourself.

Desiccant dryer

Perhaps, the simplest option, which does not require large financial and time costs.

Thus, you will get a low-noise and fairly efficient device that can be easily powered from a USB connector or a mobile phone charger. The fan creates an inflow force and drives the air through the silica gel, and the dried stream exits the perforations at the bottom of the structure.

Condensing dryer

This device is more complicated than the previous one, but the basis of the necessary design is easy to find in each modern house. Roughly speaking, such a dehumidifier can be made, for example, from an old refrigerator.

Refrigerator dehumidifier example

Remove the door from the freezer and refrigerator compartments by disassembling the hinges. This is easy to do, since most models are equipped with removable doors.
By dimensions removed doors measure the plexiglass plates at least 3 mm thick.
At a distance of 30–40 cm from the edge of the plate, cut a hole into which the fan will be mounted. Its dimensions must match protective grid pressure unit.
Mount the fan, fix its grille with self-tapping screws. The device should work as a supply pressure unit, blowing air into the refrigerator.
Drill a series of holes in the top of the Plexiglas plate. Them total area should be equal to the area of the fan opening.
Put in order the standard system for removing condensate from the case or modify it. To do this, connect the outer pipe above the compressor with a storage tank with a polymer hose.
Fix the plexiglass with self-tapping screws in the place where the refrigerator door should be. To seal joints and insulate them, use self-adhesive tape or silicone.

Now you just have to turn on the refrigerator, before starting the fan. It will take a little time, and the humidity in the room will decrease by 8-10%. If this homemade dehumidifier works for a long time, then in addition to humidity, the temperature in the room will also decrease.

Video: how to make a dehumidifier with your own hands

Humidity control

How to solve the problem with humidity control? Factory dehumidifiers are equipped with built-in temperature and humidity control sensors. But what about in the case of homemade device? You can use a thermometer, but it's optional and won't tell you anything about the humidity level.

Use a hygrometer. It can be arrow or digital. You can buy it in many specialized stores. In addition, such a device is often provided in the design of some modern models hours.

A hygrometer will help you control the humidity in the room.

When using a homemade dehumidifier, do not forget that too dry air can be harmful. Indeed, in addition to pathogens, there are beneficial bacteria around us that also need moisture. A hygrometer will help you determine if a dehumidifier is needed. If the humidity in the apartment has reached a critical 80%, at which mold and fungi begin to actively multiply, feel free to turn on the device. Pay attention to weather: Perhaps in some cases you need to use not a dehumidifier, but a humidifier.

As you can see, you can easily make your own dehumidifier. Thus, another problem is solved - the use of an old refrigerator, which is a pity to throw away, but there is nowhere to put it. Share with us your experience in dehumidifying the air in the apartment. Easy work for you and comfort for your home!

Fluctuations in temperature and humidity both indoors and outdoors create uncomfortable conditions for living in an apartment. The best way out of this situation is to install an air dryer. The industrial version is not cheap, so today we will talk about how to make a dehumidifier for an apartment with your own hands.

Why do you need a dehumidifier in your apartment?

humidity;
high room temperature.

A temperature above 20 degrees Celsius with a relative humidity of 80% is enough for you to see with the naked eye the growth of mold and fungus colonies on the walls of the rooms. And why in this case, for example, your neighbor does not have such troubles? The answer is simple: the air temperature in all apartments is most often the same, but the humidity can vary greatly.

Air dryers

Dehumidification will also get rid of sweat on the windows.

Operating principle

To choose a device with the optimal volume, consider the size of the room in which it will be installed. Pay attention to the price of equipment. The larger the volume of the dehumidifier, the more expensive it is, but such a device will require less maintenance.

The principle of operation of the dehumidifier is based on the change in humidity due to its condensation. Air is supplied from the room with the help of fans into the device. There it passes through the evaporator, which is a radiator, the temperature of which is lower than the air temperature in the room. Moisture condenses due to this temperature difference.

The simplest air dryer circuit

Note! When using such a dehumidifier, you need to make sure that the building has a high-quality forced ventilation system that supplies fresh air to the room and selects mixed air.

Scheme of a condensing air dryer

Such dryers are often used in the following cases:

to prevent fogging of windows in the premises;
to improve the comfort level of everyday life;
when carrying out repair work.

Any finishing materials during repairs when using a dehumidifier dry much faster. And the technology does not suffer at all: the temperature in the room remains the same.

Algorithm for creating a device with your own hands

Air dehumidification is provided by three simple principles:

heating;
adsorption;
condensation.

Desiccant dryer

Perhaps the simplest option that does not require large financial and time costs.

Take 2 plastic bottles. The volume of each is at least 2 liters.
You will need 2 liter plastic bottles
Perforate the bottom of the first bottle with a hot knitting needle or nail. Divide the container into two equal halves.
In the lower, perforated part of the first bottle, place the second half so that it is directed with the neck down. Be sure to screw the cork onto the neck, making many holes in it with a red-hot awl.
AT upper part construction, fill in any absorbent. The best option is silica gel, which has powerful absorbent properties. Which are easily restored after drying the used substance. For one desiccant, you will need about 250 grams of silica gel.
Use silica gel as a filler
Cut off the bottom of the second bottle, fix a fan inside the container that will blow towards the cut bottom. To do this, you can use a USB fan or a cooler to cool the computer processor. Position the pressure unit of the device 7-10 centimeters from the cut bottom.
As a fan in such a dehumidifier, you can use a cooler from the processor
Put the second bottle on the container containing the adsorbent. Carefully wrap the joint with adhesive tape to seal. Unscrew the cap from the neck of the second bottle - this way you will ensure the flow of air.
Example of connecting parts of bottles for a desiccant

Condensing dryer

This device is more complicated than the previous one, but the basis of the necessary design is easy to find in every modern home. Roughly speaking, such a dehumidifier can be made, for example, from an old refrigerator.

Refrigerator dehumidifier example

Remove the door from the freezer and refrigerator compartments by disassembling the hinges. This is easy to do, since most models are equipped with removable doors.
According to the dimensions of the removed doors, measure the Plexiglas plates at least 3 mm thick.
At a distance of 30–40 cm from the edge of the plate, cut a hole into which the fan will be mounted. Its dimensions must match the protective grille of the pressure unit.
Mount the fan, fix its grille with self-tapping screws. The device should work as a supply pressure unit, blowing air into the refrigerator.
Drill a series of holes in the top of the Plexiglas plate. Their total area should be equal to the area of the fan opening.
Put in order the standard system for removing condensate from the case or modify it. To do this, connect the outer pipe above the compressor with a storage tank with a polymer hose.
Fix the plexiglass with self-tapping screws in the place where the refrigerator door should be. To seal the joints and insulate them, use self-adhesive tape or silicone.

Video: how to make a dehumidifier with your own hands

Humidity control

How to solve the problem with humidity control? Factory dehumidifiers are equipped with built-in temperature and humidity control sensors. But what about a homemade device? You can use a thermometer, but it's optional and won't tell you anything about the humidity level.

Use a hygrometer. It can be arrow or digital. You can buy it in many specialized stores. In addition, such a device is often provided in the design of some modern watch models.

A hygrometer will help you control the humidity in the room.

When using a homemade dehumidifier, do not forget that too dry air can be harmful. Indeed, in addition to pathogens, there are beneficial bacteria around us that also need moisture. A hygrometer will help you determine if a dehumidifier is needed. If the humidity in the apartment has reached a critical 80%, at which mold and fungi begin to actively multiply, feel free to turn on the device. Pay attention to weather conditions: perhaps in some cases you need to use not a dehumidifier, but a humidifier.

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