Cheap way to dehumidify the air. Tips and effective ways to dry the cellar in the garage

The dehumidifier is popular today along with the humidifier. No matter how strange it may sound, but both devices of diverse action allow you to create a comfortable microclimate not only in different houses and apartments, but also in one housing. The choice of a suitable fixture depends on the quality of the building materials used at the base of the building, the chosen finish and the characteristics of the life of a particular family. Why you need a dehumidifier, the principles of its operation, as well as how to make a dehumidifier with your own hands, you can find out here.

What is the purpose of a dehumidifier in an apartment?

The most unwanted and unexpected guests in our homes are fungus and mold. Their disputes regularly hover around. But in most cases they are at rest, because in order for them to start acting, they need certain conditions, namely:

• high temperature in the room;
• humidity.

And why then, for example, does a neighbor not have such undesirable troubles? The answer is quite simple: the air temperature throughout the house is most often the same, but the humidity can vary greatly.

Air Dryer

In the fight against the effects of dampness, you can, of course, significantly reduce the temperature in the apartment. But who wants to live in constant cold? That is why the best way out of this situation is to install an air dryer. You will make it with your own hands or buy a ready-made device - here it is up to you to choose personally.

Important! Among other things, he becomes the guardian of the health of the inhabitants of the apartment. The immunity of the human body is directly dependent on the humidity of the air that is around it. The drier it is, the more difficult it will be for harmful bacteria and harmful microorganisms to multiply.

Algorithm for creating a dehumidifier with your own hands

Air dehumidification is carried out by three simple principles:

• heat;
• adsorption;
• condensation.

It would seem that with the help of heating it is easiest to dry the air in the room. But the reality is that no one likes to be in an excessively hot apartment for days on end. That is why we will consider the following 2 options: condensation and moisture adsorption. You can make dryers based on these principles without outside help.

Desiccant dryer

This is probably the simplest option that does not require large time and financial costs:

1. Take 2 plastic bottles. Each volume is not less than 2 liters.
2. Perforate the bottom of one of the bottles with a hot nail or knitting needle. Divide the container into two equal halves.
3. Insert the second half into the lower, already perforated, part of the bottle so that it is directed with the neck down.
4. Be sure to screw the cork onto the neck, making a large number of holes in it with a hot nail or awl.
5. Pour any absorbent into the top of your structure.

Important! The best option is silica gel, which has powerful absorbent options. They are quite simply restored after drying the used substance. For one desiccant you will need approximately 250 grams of silica gel.

1. Cut off the bottom of the second bottle, fix the fan inside the container, which is needed in order to blow towards the already cut bottom. Place the pressure unit of the device 7–10 cm from the cut bottom.

Important! To do this, you can use a USB fan or a cooler that is designed to cool computer processors.

1. Put a bottle with a cut bottom on a container that contains an adsorbent.
2. Wrap the joint thoroughly with tape for better sealing.
3. Unscrew the cap from the second bottle to allow air flow.

Important! Having done all these small manipulations, you got a low-noise, but quite effective device that is powered by a USB connector or a mobile phone charger. The fan creates an inflow force, thereby driving the air through the silica gel, and the already dried stream exits through the perforations at the bottom of the structure.

In addition to dehumidifiers, there are many more effective ways to solve the problem, which we have collected for you separately in a post.

Condensing dryer

This unit is somewhat more complicated than the previous one, but the basis of its design can be found in every home. Roughly speaking, this do-it-yourself dehumidifier can be made, for example, from a forgotten refrigerator.

How to proceed:

1. Remove the door from the refrigerator and freezer compartments by disassembling the hinges. This is very easy to do, because most models are equipped with removable doors.
2. According to the dimensions of the removed doors, measure the Plexiglas plates, the thickness of which will be at least 3 mm.
3. At a distance of approximately 35 cm from the edge of the plate, mark and cut a hole into which the fan will subsequently be mounted.

Important! The dimensions of the hole should match the fan guard you found.

1. Mount the fan in the plate, fix its grille with self-tapping screws.

Important! The device should work as a supply pressure unit, that is, blow a stream of moist air into the refrigerator.

1. At the top of the plexiglass plate, make a series of holes with a drill. Their total area must match the area of ​​the opening for the fan.
2. Put the standard system for removing excess condensate from the case in order or modify it. To do this, connect the outer pipe, which is located above the compressor with a storage tank, with a polymer hose.
3. Fix the plexiglass with self-tapping screws in the place where the refrigerator door should be.

Important! In order to achieve greater sealing at the joints and insulate them, use self-adhesive tape or silicone.

What is a typical dehumidifier?

Anyone who knows how a refrigerator works, the principle of operation of a dehumidifier will not seem very confusing.

Principle of operation

Freon also circulates inside, and there are four phase states that allow you to first cool the air entering the room, thereby taking all the moisture out of it, and then reheat and release it into the room.

Important! Most often, problems with humidity levels occur when the ventilation system does not work properly. Check it at least in the most elementary ways - by bringing a lit match or attaching a sheet of paper, and then we will show you how to solve the problem, improve the microclimate in the house and.

Here are the components on which the basics of air dehumidifiers are based:

• evaporation;
• compression;
• condensation.

Device

In order to provide state data, there are four constructs. The composition of the air dryer device is installed:

• capillary tube;
• compressor;
• condenser;
• evaporator.

Important! The output stream is heated by a condenser, where the freon transforms into a liquid, giving off the previously collected heat.

Functionality

It remains to be added that in factory dehumidifiers, 2 parameters of the room microclimate can be adjusted:

• temperature;
• humidity.

In addition, it is possible to adjust the fan speed, thereby affecting performance. The higher the humidity in the room, the higher the speed should be. So, a dehumidifier in the bathroom should work much faster.

Important! Some models are equipped with an ultraviolet disinfectant.

An important nuance of choice

According to its parameters, the purchased device exceeds the parameters of a vacuum cleaner by 2 times. This is a fairly large device, which, among other things, can be relatively noisy.

Important! If you buy an air dryer, then the acoustic level should be about 46 dB. For better understanding, most refrigerators operate in the range from 42 to 52 dB.

Now you know everything about how a household dehumidifier works, what it can do, how convenient it is. And for comparison, you can first make a more budget version of the device. To do this, you have 2 step-by-step instructions for assembling an air dryer with your own hands from improvised means. Perhaps you will get such an interesting and effective device that you are unlikely to want to spend an impressive amount on modern home appliances from industrial manufacturers.

Often, when walking through consumer electronics stores, I noticed such a device as a humidifier and never saw a dehumidifier. Someone will now say that in almost any air conditioner there is such a function as an air dryer. In everyone, but not in everyone. But not always everyone can afford air conditioning. Moreover, the air dryer, which I will tell you about today, has a number of advantages, one of which is noiselessness. I needed a dehumidifier for my ground floor apartment. There is such a humidity at home that even mold fungus appears on the walls.
So, the air dryer that I built consists of almost three parts: two radiators and a Peltier element. I think most avid gamers who love to madly upgrade their computers are familiar with it. In a nutshell, this device, when current is applied to it, begins to emit cold on one side and heat on the other. On the one hand, we will fight heat by blowing the radiator from the cooler. And on the other hand it will be cold - we need it.

Let's get started. Let's prepare the following: a radiator with a cooler, the second radiator is smaller, a Peltier element (for those who are interested, I took it), thermally conductive paste (you can buy it at any computer store) and a couple of screws for fastening the structure.
First of all, I drill holes in the radiators - the holes in the second radiator are slightly larger. Next, I take the Peltier element and smear its sides with thermal paste on both sides. Smear with a thin layer, otherwise the paste will squeeze out a lot. I put the smeared element between the radiators and twist it with self-tapping screws. If you repeat the design, then twist carefully, without fanaticism, otherwise the element will crack.

Everything! Now we attach our dehumidifier somewhere and put a vessel below to collect the liquid.
The principle of operation of the device is very simple - the side is cooled and moisture in the air condenses on it. I hope you are not a boy of five years old and given at school you passed)
We connect the cooler in parallel with the element and apply a voltage of 12-15 volts. If a small radiator starts to heat up, change the polarity of the element.

For clarity, I connected a thermometer and it shows that the temperature dropped to 6 degrees very quickly. After a while, the radiator began to fog up and condensation began to drip. After 15-20 minutes of operation, the temperature dropped to 4 degrees Celsius.

I want to note that the size of a large radiator should be chosen from the formula: the larger, the better. But a small radiator should not be taken very large, otherwise the temperature on it will be below zero and all the moisture on it will turn into ice and freeze, and this is not good.

Each person wants to create warmth and comfort in his home, but sometimes temperature fluctuations and uneven humidity in the room and outside create conditions that bring discomfort to the inhabitants. The simplest and fastest way to solve this situation is to purchase and install an air dryer.

Industrial dryer models can be found in a specialized store, but their cost is not always affordable for the average consumer. In this case, you can resort to the independent manufacture of such a device, which in terms of functionality will not be inferior to the industrial one, and at the same time, the cost of its manufacture will be much less.

Purpose of the air dryer

Most apartment owners periodically face the problem of mold and mildew. The spores by which they reproduce are carried by air currents. In the absence of certain conditions, they are in a state of calm, but when favorable conditions arise: high humidity and air temperature, they begin to actively develop.

For the development of a colony of fungus or mold, the presence of a twenty-degree air temperature with a relative humidity of 80% is sufficient. In the absence of such a phenomenon among neighbors behind the affected wall, it can be concluded that humidity has become the main factor in their development.

To solve the situation that has arisen, the main factors of its occurrence should first be eliminated. Of course, it is not always advisable to lower the temperature, especially in the autumn-winter period. In this case, the best solution is to reduce the humidity in the room by using a dehumidifier.

Removing fungus and mold solves not only an aesthetic problem, but also improves living conditions. After all, a humid environment is a favorable environment for the development of pathogenic bacteria and microorganisms that can harm human health.

What is an air dryer

A dehumidifier is a household appliance that is used to dehumidify a dwelling with subsequent regulation of the humidity level. It can be used not only in residential premises, but also in production. The dehumidifier is suitable for use in areas such as:

• Utility rooms;
• Small rooms;
• Basement;
• Garage;
• dressing room;
• Library;
• Wine Vault.

Such devices are sufficient, transportable, simple and practical to use due to their low weight and convenient shape, moreover, their use does not require special installation work.

For production, water parks, ice arenas, cold stores, swimming pools, it is necessary to use special powerful modifications with high performance. With their help, not only air drying is carried out, but additional conditions for ventilation are also created. Thus, the necessary microclimatic conditions are formed in the room.

The principle of operation of the dehumidifier

Modern manufacturers provide a wide range of air dryers of various modifications, which differ from each other in some parameters. The main distinguishing characteristics is the working volume. It represents the volume of water that can be filtered by the device from the air.

When choosing a device with the required working volume, the parameters of the room for which it is purchased should be taken into account. The cost of the dehumidifier also depends on the value of this characteristic, but despite the rather high cost, the costs of its further maintenance are reduced.

Distinguish portable and stationary dehumidifiers. Portable ones are distinguished by their ability to be transported, that is, it can be easily moved to the desired room and installed for work without any problems. Stationary, on the contrary, are mounted on the wall, they cannot be moved, but they are characterized by high performance and power.

The principle of operation of the device is to reduce the level of humidity due to condensation. With the help of a built-in fan, the air flow enters the device, where it passes through the evaporator. This is a radiator that has a temperature an order of magnitude lower than in the room. This temperature difference contributes to moisture condensation.

The liquid that was formed in the process flows down, where it accumulates in a special container. The air that is processed in the evaporators and cooled further starts, heats up, passes to the outlet compartment from where it enters the room in a dry and warm state. It is very important when using a dehumidifier to ensure that the room is effectively ventilated.

In addition to changing the humidity of the air, the dehumidifier is used to:

• Prevent fogging of windows;
• Formation of comfortable microclimatic conditions for living;
• During the renovation.

The use of the device during repair work accelerates the drying of finishing materials, while not violating the technology, since the temperature in the room is at the same level.

Algorithm for creating a device with your own hands

The dehumidification of indoor air flow is based on three principles:

• Heating;
• Adsorption:
• Condensation.

To create favorable microclimatic conditions, heating is not always suitable, because an increased temperature regime can adversely affect the inhabitants of the room. When designing a dehumidifier yourself, you should adhere to the principles of moisture condensation and adsorption, which are the most effective and easiest to implement.

Desiccant dryer

To create the simplest adsorption type dehumidifier, you do not need to purchase expensive materials and spend a lot of free time. To create an adsorption-type dryer, you will need a pair of plastic bottles with a volume of two liters.

The bottom of one of the containers must be perforated with a hot knitting needle, nail or other suitable object. Then the bottle should be divided into two identical components.

The next step is to place the top of the bottle into the bottom perforated one so that it is neck down.

The cork on this part of the bottle must be carefully buried, and several through holes should be made in it using the same hot nail, knitting needle or awl.

An absorbent of any type must be poured into the upper component of the structure. The most suitable is silica gel, which is characterized by high absorbent parameters. In addition, it can be easily restored after drying the used substance. For one desiccant, you need to take 250 grams of silica gel.

The bottom of the second bottle must be removed. A fan must be placed inside the bottle, which will direct the air flow towards the cut bottom. As a fan, you can use a USB fan or a cooler, which is used in a computer device to cool the processor. The pressure unit of the device must be placed at a distance of ten centimeters from the cut bottom.

The second bottle container must be put on the bottle containing the absorbent. The joint line must be carefully treated with adhesive tape to create a reliable seal. For air flow, you need to open the cap on the second bottle.

Following the manufacturing technology, it is possible to design a simple, silent, compact and efficient dehumidifier. The built-in fan creates the conditions for the flow of air to flow through the adsorbent, and the treated air enters the room through an opening at the bottom of the structure. The battery can be used as a power source for the fan.

Condensing dryer

A device for dehumidifying the air of a condensation type is an order of magnitude more complicated than an adsorbing version, but at the same time, the basis for its creation can be found in every home. Such a basis may be a faulty old refrigerator.

The initial step in creating a condensing type dryer is to prepare the refrigerator. To do this, remove the door from the existing compartments by disassembling the hinges. It does not take much time and effort as most modifications use removable doors.

Then you need to prepare Plexiglas plates with a minimum thickness of about three millimeters, which in size will correspond to the removed refrigerator door.

From the edge of the pre-prepared plate, holes must be made. They need to be done at a distance of thirty centimeters from the edge. These holes are intended for further installation of the fan. Its dimensions must correspond to the protective grille of the pressure unit.

Installation of the fan consists in its fastening to the grid using self-tapping screws. The principle of its operation is identical to the supply pressure unit and consists in blowing an air stream into the middle of the refrigerator.

In the prepared plexiglass plate, a series of holes should be built along the upper edge. Their area should be identical with the surface, which is intended for the construction of a hole for further fixing the fan.

It is also necessary to analyze the operation of the standard system for removing condensate from the case and, if necessary, modify or streamline it. To this end, it is necessary to connect the outer pipe above the compressor with the storage tank using a polymer tube.

In place of the refrigerator door, you need to fix the Plexiglas plate with self-tapping screws. For reliable sealing of joints and seams, it is recommended to use self-adhesive tape or silicone.

The preparatory stage is over, now you can start the device. First you need to start the fan, and then connect the refrigerator itself. Some time after the start of operation of a homemade dehumidifier, the humidity in the room may decrease by ten percent. After prolonged use of such a device, not only the humidity decreases, but also the ambient temperature.

Humidity control

Home-made air dryer designs are distinguished by the absence of a device for controlling the level of humidity in the room, which can create certain difficulties during its operation. In production models, there are built-in sensors that display data on humidity and temperature indicators.

In cases where a homemade dehumidifier is used, a familiar thermometer is used to measure the temperature. To pacify the level of humidity, it is advisable to purchase a hygrometer.

It is arrow and digital. Any suitable model can be purchased at a specialized store. In addition, this function can be installed on modern gadgets: computers, tablets, smartphones.

Have you begun to feel uncomfortable in your own apartment, do you have allergies, do you cough? Or maybe condensation appears on the windows, and unpleasant neighbors settled on the walls - mold and fungus? There is only one conclusion - the humidity in the living room rolls over. We take urgent measures and make a dehumidifier for the apartment with our own hands.

We regulate the level of humidity in the apartment

Everyone knows that the optimal and comfortable temperature in a living room should vary from 18 to 20 °. Many people forget about such an insignificant indicator as air humidity. Its level for a full and cloudless life should not exceed 60%.

If you love warmth and in your apartment the temperature regime exceeds 20 °, and the humidity level has exceeded 70%, get ready for the visit of uninvited guests. Mold and mildew are on the way. And for the company they will also take a bunch of diseases.

At this point, you need to think about how to dry the air in the apartment yourself.

And if until today we tried to humidify the air, now everything has changed. Humidity needs to be reduced immediately. This is what air dryers are used for.

Learn more about how the dehumidifier works

If you know how the cooling element of a refrigerator works, then you can easily understand the principle of operation of an air dryer. The easiest way to make a DIY desiccant is to buy a regular candle. In one hour of burning, the air is dried by 18 square meters. m. Not even all store dehumidifiers will cope with such a task in such a short time.

Let's return to the principle of operation of the dehumidifier. The device must first absorb moist air into itself, dry it, then heat it up and expel it into space again. The operation of almost all dehumidifiers goes through four stages:

• evaporation;
• compression;
• formation of condensate;
• extension.

To make a dehumidifier at home, you need to carefully consider its design. The operation of the dehumidifier is based on four pillars:

• evaporative element;
• compressor;
• condensing mechanism;
• capillary tube.

What is the strength of silica gel?

Many factory-type dryers use silica gel as an absorbent. This material is a white granular substance, which is made from polysilicic acid. The reagent perfectly absorbs moisture and dries very quickly, which makes it possible to use it repeatedly.

Silica gel is used not only for drying air, it also has filtration properties. It is easy to buy such a substance at any specialized or virtual outlet, or you can make silica gel with your own hands. Here are a couple of recipes for you.

Recipe #1

Silica gel is made from silicate glue or water glass and hydrochloric acid. True, the last ingredient is almost impossible to find. All components are mixed in equal proportions, and then dried in three stages:

• 18-30 hours at a temperature mark of 40-50 °;
• another 18-30 hours at a temperature of 50 to 100 °;
• 5 hours at 130°.

The final step requires the calcination of the reagent. This is done for 2 hours at a temperature of 180 °.

Recipe #2

This option for preparing silica gel is more affordable. You will need sodium silicate and concentrated acetic acid. These ingredients are mixed in equal proportions. In the oven, dry the resulting mass, and then grind it into powder. This material can be used to fill the air dryer.

Making a home dehumidifier: a quick and budget option

In stores, you can easily buy a factory-made air dryer. The question is only in the price category. If you decide to save money, do it yourself. You already know the principle of operation of the device and how to make silica gel, the only thing left is the matter.

Please note that in winter, the dehumidifier slightly lowers the air temperature, so it is best to use it only on hot days. You will immediately kill two birds with one stone: normalize the level of humidity in the room and slightly cool the air. It turns out such a miniature air conditioner.

Required materials and tools:

• plastic bottles with a nominal volume of 2 liters - 2 pcs.;
• nail or knitting needle;
• candle;
• matches;
• 250 g silica gel;
• fan;
• scotch.

Step by step description of the process:

• We take a plastic bottle with a nominal volume of 2 liters.
• Cut it across into two equal parts.
• We perforate the bottom of the bottle. This is easy to do with a hot knitting needle or a nail.

• We wind the cork on the neck of the bottle and make many through holes in it.
• Now we connect the two parts of the bottle.
• We lower the upper neck down into the lower part.
• Fill the top of the bottle with absorbent. For one desiccant you will need about 250g of silica gel.

• We take the second bottle and cut off the bottom in it.
• We need a fan to ventilate the air. Perfect for a computer cooler.
• We mount it at a distance of 7-10 cm from the cut bottom with the blades down.

• We put this design on top of the first bottle.
• We twist the neck to ensure an unhindered flow of air.
• Between themselves, the parts of the structure are hermetically fixed with adhesive tape.
• Such a dehumidifier will work from a phone charger or a USB connector.

Any air conditioning equipment is quite an expensive item. Dehumidifier is no exception. For the 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 is an important condition for 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 of 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 are temperatures above 20 degrees and humidity 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, degree of 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 without any problems. But stationary devices are characterized by higher performance. They are usually wall mounted.

A typical desiccant consists of the following parts:

1. Fan powered by an electric motor.
2. Evaporator (cold heat exchanger) - a radiator with a low surface temperature. Coolant (freon) circulates through the radiator.
3. A container for collecting condensate, which accumulates and flows down the walls of the evaporator.
4. Drain tube to remove fluid from the device.
5. 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.
6. Control panel that regulates the intensity and level of condensation, the temperature of the outgoing air.

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

1. With the help of fans, air from the room is drawn into the device.
2. Air enters the evaporator. Due to a sharp temperature drop, moisture condenses (passes from a gaseous to a liquid state).
3. 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.
4. The dried air passes through a radiator with a high temperature and, before leaving the room, is heated to the desired temperature.
5. 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:

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

To make a homemade dehumidifier, you need to create a system that can create one of these processes. It would seem that the easiest way to remove moisture from the room is simple heating. But high temperatures and dry air will create no less serious problems than 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 moisture concentration 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 is 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 a charger from a mobile phone. There are options for arranging the working mechanism on a battery or batteries. It all depends on the available materials, capabilities and skills.

Sequencing:

1. 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.
2. A bottle with holes is cut with a knife into two identical halves.
3. 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.
4. The existing absorbent is poured into the upper half of the bottle.
5. The bottom of the second bottle is cut off.
6. 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.
7. 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 an 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:

1. 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.
2. Sheets of plexiglass are measured and cut according to the size of the doors.
3. 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.
4. 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.
5. 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.
6. Plexiglas is mounted in place of the doors. Silicone or electrical tape is 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.