5 ways to determine the humidity in the apartment + STANDARDS

How to determine the humidity in the apartment

What device measures humidity and where to buy such a meter? If the air in your apartment is too humid or, on the contrary, dry, then you need to take some measures to establish its optimal level. But first, you should familiarize yourself with how to determine and how to measure air humidity at home. There are several ways to measure air humidity.

Hygrometer

Using this device is the simplest and most correct option.

When choosing a hygrometer, you should pay attention to its accuracy. Measurement deviation should be no more than 1%

Glass beaker

This method is not accurate, but if necessary, it will help you understand the moisture values. The necessary items for the implementation of such a task are probably in the arsenal of every housewife.

Procedure:

Fill a glass jar with cold water.
Refrigerate the contents of the glass to 3-5 degrees.
Place the vessel in the room away from heating appliances and analyze the result.

Result evaluation:

The walls of the vessel were fogged up, but after about 10 minutes they became dry. This result indicates an extremely low humidity level.
The misted walls of the glass did not dry out even after 5-10 minutes and the drops flow into the glass. Such indicators indicate high humidity.
The condensation formed on the walls of the glass container did not evaporate, but it also does not drain off in large drops. This effect indicates that the moisture in the air is within normal limits.

Procedure:

First, you need to measure the air temperature with a standard mercury thermometer. Record your readings.
Wrap the head of the device with wet wet cotton wool or gauze and, after 10 minutes, evaluate the thermometer readings.
Subtract the wet bulb reading from the dry bulb temperature.
Find the resulting difference by the values of a special Assman psychometric table, determining the level of humidity in the room you need.

We make the microclimate in the apartment drier

If the test showed high humidity, everything is somewhat more complicated. It is not always possible to correct the situation with improvised means and affordable household appliances.

The easiest, but unfortunately, not the cheapest and most affordable way is to purchase a special dehumidifier. These devices do not heat or burn the air, and some are able to maintain humidity according to the specified parameters. If the device is not available, it is recommended to ventilate the room more often. This should be done regardless of the weather outside and the time of year. For rooms in which natural ventilation is difficult, hoods should be used.

Determining the level of humidity in the apartment is half the battle. It is necessary to constantly monitor it, and in case of non-compliance with the norms, take immediate measures to eliminate these non-compliance.

Folk ways to measure indoor moisture

The importance of humidity in the house has been known for a long time. We learned to determine deviations from the norm, even when measuring instruments did not exist

People watched the houseplants. If the flowers dry, despite frequent watering, then this indicates dry air in the room. The increased water content led to decay.

The condition of the soil in a flower pot will quickly indicate moisture levels.

Observation of nature suggested another way of determining. It has been observed that the spruce cone shrinks its scales when the moisture in the air rises.And vice versa, it fully reveals itself when there is not enough water for it. If you attach a pine cone to a plywood and hang it in a room, it will warn you about changes in water content in the atmosphere.

Attention to detail and using the experience of ancestors will help determine the degree of humidity in the house without household appliances. An ordinary glass cup with water must be kept in the refrigerator for at least five hours.

Then it is installed on the table and after 5 minutes its walls will show the state of humidity in the room. If they just fogged up, then everything is fine. Running trickles will indicate an increased condition. Dry - about a serious shortage

An ordinary glass cup with water must be kept in the refrigerator for at least five hours. Then it is installed on the table and after 5 minutes its walls will show the state of humidity in the room. If they just fogged up, then everything is fine. Running trickles will indicate an increased condition. Dry - about a serious shortage.

You don't have to buy a psychrometer, but measure the readings with one room thermometer. To do this, you need to write down the readings on paper and wrap the thermometer with a damp cotton swab. Take readings after 10 minutes. How to make calculations was mentioned above. But you can use the Asman table.

Moisture measurement with special devices

The relative amount of moisture in the air can be measured using hygrometer (hygroscopic). Various views hygrometers differ in design features, method of determining readings and measurement accuracy.
When choosing a device, you should note the size, permissible temperatures at which measurements can be made, the limits permissible errors, methods of fastening or installation.

Hygrometers

Psychrometric hygrometer consists two alcohol thermometers mounted on a plate or tripod. Most often, on the body of the device next to the thermometers there is a reference table for moisture determination. The tip of a "wet" thermometer is always in a "cocoon" of damp cloth.
According to indications "Dry" thermometer and the temperature difference find the value relative humidity.

Weighing hygrometer - a system of u-shaped tubes with adsorbent material through which air is pumped. The change in the mass of the material is used to determine the moisture content in a known volume of air in g / m3.

Volosny and film a hygrometer is used to determine the relative humidity in the room. Natural hair or organic film has the property to react to changes in humidity. The arrow of the sensitive device reacts to these changes and indicates on the scale precise value.

Electronic home hygroscopes

Through portable electronic hygrometers can easily control the humidity in any room of the apartment. Principle of operation ceramic devices is based on a change in the resistance of a porous material with an increase or decrease in ambient humidity.
Condensing hygroscopes measure the temperature of a cooled mirror when it appears on its surface condensate, and compares it to the ambient temperature.

Electronic hygrometers are multifunctional and mobility... They can be installed anywhere in the room, the modern design of the case will not spoil the overall interior of the room.

On a small screen light up readings of relative humidity, temperature, time and even weather forecast... Read the next article about the optimal temperature in the apartment.

Important: Many models of electronic hygrometers are equipped with a memory function and can record changes in readings over a certain period of time.

Mercury thermometer

If in the house not measuring device, and the state of the microclimate in the apartment causes doubt, you can use psychometric method determination of air humidity. For this will need:

Medical mercury thermometer;
Thin cloth;
Water;
Stopwatch or clock;
Psychrometric table (can be found on the Internet).

Measurement temperature in the room at first dry bulb, then wrap the mercury tip wet cloth and through 10 minutes are re-measured. Calculate difference between the readings and find the value of the relative humidity from the look-up table.

In a vertical column the table shows the readings of the dry bulb thermometer, and in the upper horizontal line the value of the temperature difference. In a cell at the intersection of the lines of two readings, they find percentage humidity indicator in the room.

[rek_custom1]

Danger of dry air

The problem of dry air is especially relevant during the hot season, when the ambient temperature rises significantly. This leads to the fact that dust, pollen, animal hair and other allergens can easily move around rooms and do not settle on furniture. Thus, it is easier for them to enter the human body through the respiratory tract and cause a serious reaction. This is especially dangerous for young children.

In addition, dry air causes the mucous membranes of the respiratory tract to dry out, which makes the organs vulnerable to the action of microbes. It is difficult to work in a room with dry air, even for a very efficient person, as the body gets tired quickly. A person constantly experiences a feeling of drowsiness. Increased static electricity is also common in these areas.

How air humidity affects the condition of apartment residents

The accumulation of moisture on the windows is the first sign of high humidity.

Condensation on windows and mold indicates excessive moisture in the room. Fungal mold can cause many diseases, including:

bronchitis;
the development of oncological diseases;
asthma;
otitis media (ear inflammation);
allergic reactions;
diseases of the cardiovascular system.

If the listed diseases began to develop in family members, you must immediately figure out how to check the humidity in the apartment. All residents of the house may suffer from immunodeficiency and persistent headaches.

Important: mold in the home can cause diathesis in babies, triggered by low immunity

Dry air is just as dangerous as excessively humid air. Particles of water contribute to the deposition of various allergens such as dust, pet hair and others. In dry air, allergens float freely around the room, thereby entering the body. Residents of such a room are accompanied by chronic fatigue, infectious diseases develop faster. Children may develop renal failure and dysbiosis.

Increased moisture

Measurement of air humidity in the apartment is made so as not to face the difficulties of air dryness and increased moisture level. Some people think that this is not a particularly serious problem, so installing a hygrometer is pointless. But this attitude must be changed, since there will be negative consequences if the humidity level in the apartment is not controlled.

The relatively high level of moisture in the air at home is a source of microscopic fungi on surfaces. Also, such conditions are a favorable environment for the development of a fungus, which can adversely affect human health. Mold can lead to the development of allergies in a person.

But don't forget that allergies are just one of the diseases that mold can cause in humans. The fungus can become the source of a variety of infectious diseases.

Mold spores can end up in your food. A person and his entire body can begin to suffer from foodborne diseases.It is dangerous for all people who live in this house.

To avoid all these problems, it is necessary to regularly ventilate the room. Airing should take place regardless of the temperature outside the window and at any time of the year.

You will be able to enjoy a pleasant home environment due to the fact that moisture is always normal.

Due to the fact that you will control the level of humidity in the room, it will help eliminate the likelihood of mold or mildew on different surfaces. It will also keep your body healthy. Therefore, a hygrometer was created that will make your task easier. The stores have a fairly wide range of these devices, which allows you to choose the right hygrometer just for yourself.

When selecting, look at the accuracy of the machine's values. Not everyone needs instruments (meters) that display ultra-accurate readings of the level of relative humidity. Most buyers are satisfied with the approximate values when determining. Air humidity in the room and the accuracy of the readings depend on the technical component of the meter.

First, compare the technical characteristics of each type of moisture detector. A device that is randomly chosen will cause a lot of frustration during use, and will not meet all the requirements. You will only spoil your nerves and mood and waste your money.

Therefore, after purchasing the qualifier, save the receipt for it, so as not to face future troubles. Thanks to the check, the hygrometer can be returned to the store if it does not meet your requirements. Buy a quality identifier to protect your room! You will be able to maintain home coziness and comfort.

The climate of our country presupposes the almost constant use of heating devices, which greatly contribute to an increase in the dryness of the air, and the optimal humidity in the apartment becomes an unattainable dream.

Nonetheless, the microclimate of the home plays a critical role in ensuring the health of the people living in it. In the case when the level of moisture content does not reach the prescribed values, each person, be it an adult or a child, will certainly encounter a number of unpleasant phenomena.

How to measure the humidity in the apartment

The well-known humidity rate of 55-60% must be confirmed by special devices.

In stores there is an apparatus called a hygrometer that allows you to accurately set the humidity readings. Several varieties of these devices can be noted:

hairy;
weight;
electrolytic;
condensing;
ceramic;
weight;
film.

Among the rich variety, everyone can choose the technique that will not hit the pocket and will accurately determine the required indicators

When choosing moisture measuring instruments, you should pay attention to their technical characteristics. Typically, the standard is a range of twenty to ninety units.

Before starting observations, measure the error of the apparatus, which can vary from one to five values of the scale.

It is worth noting that if it is supposed to measure indicators in rooms with a high level of moisture in the air, it would be best to prefer a device that has a high degree of protection against moisture penetration and condensation.

Air humidity meter

Thermohygrometer

is a very complex device that measures not only the humidity of the air, but also the temperature in the room. Among other things, the thermo-hygrometer records readings about the state of temperature and humidity, recorded from different points.That is, directly from the place where the thermohygrometer itself is installed and from the point where the sensor was previously installed.

The device synchronizes the readings obtained from different points in the room, and based on this, it already provides the results of checking the humidity level and measuring the temperature.

A few words can be said about the technical characteristics of the thermohygrometer. The cable of this device has a length of one and a half meters, and the indicators are displayed in the range from 0 to 90%. There is also wireless models

thermohygrometers. These devices are equipped with another useful function, which is that in case of a critical state of humidity in the room, an alarm is triggered, notifying of an unfavorable change in the state of the air.

Measurement of air humidity without the use of equipment

There is a fairly simple way by which you can get fairly objective data on the level of humidity in the room. And for this, just the presence of an ordinary glass glass with water is enough.

To measure humidity, you need to fill a glass with cold water, then place the container in the refrigerator for several hours until the water cools down to a temperature of about 5 ° C.

After placing the glass in a room where you want to know the level of humidity, you should observe the glass surface, paying attention to the following:

if the walls of the glass first fogged up, and then quickly dried up for several minutes, then the air in the room is dry;
the persistence of the fogging effect of the walls after 5-10 minutes after the start of observations indicates an average air humidity;
the appearance of flowing streams on the walls of the glass indicates high humidity.

Measuring device

Today there are several types of household appliance for measuring air humidity in rooms or apartments. How is the humidity in the rooms measured and determined? Let's take a closer look at all types of hygrometers.

Thermohygrometer

Air humidity can be measured using a thermo-hygrometer. Consider his work. It has a complex system, so it determines not only the level of moisture, but also the value of the temperature inside the room. Also, in addition, this device records the values of the state of moisture and temperature values at various points. That is, he compares the state of two indicators in the place where he is at this moment and in the previous room.

The device for determining air humidity synchronizes the values that it received at various points in the building. According to these readings, the thermo-hygrometer gives an overall result of the humidity and temperature values. What technical characteristics does it have?

Consider the technical characteristics of the thermohygrometer. The length of the wire is 150 centimeters. Readings are shown as percentages and range from 0 to 90. You can also purchase thermo-hygrometers that are cordless in stores.

These models have an additional function: when the state of the moisture level in the room is critical, the measuring device gives a signal that notifies the owner of the bad air situation. It is convenient to use this device (s) or meter when measuring the humidity in the apartment.

With this hygrometer you can measure temperature and humidity. You will literally participate in changing the home "weather".

Psychrometer

This room unit is fully called a psychrometric hygrometer. How to determine air humidity in an apartment using a psychrometer? They have two thermometers. One thermometer is called "dry", which does the standard job of measuring the temperature in a room.

Another thermometer is a wet one, because it is inside a water container and is wrapped in a cloth wick. It gives indications of the temperature of the wick that is wet.The value of this temperature is obtained by evaporation of moisture. If the moisture indicator is low, then evaporation is much faster. And vice versa.

Thanks to the psychrometer, you can get the necessary information about the state of your room, that is, determine the humidity of the air. Today, a psychrometer is often used to control moisture content.

Devices: hair and film

A hair instrument for measuring indoor air humidity is fairly easy to set up. Why is it called that? The operation of this type of hygrometer is carried out on the basis of synthetic hair, which is fat-free. How to find out the humidity of the air on it? How to measure air humidity in an apartment using a hair device?

From a change in the state of the air, this synthetic fat-free hair also changes its length. It is stretched between the spring and the arrow end. Due to the oscillation of synthetic hair, the arrow moves along the plate with divisions (dial), which gives the general values of the moisture level in the room. Let's discuss the "insides" of the apparatus.

This device for measuring air humidity has a wide range of values - from 0 to 100. Therefore, information about the state of the air flow will be the most accurate. Its main feature is the simplicity of its work. They are easy to handle, so you won't have to worry about using it. This meter can be placed on the wall in the room - it is quite convenient. Measure and find out the data about the condition of the apartment, which will always be in front of your eyes.

There is another type of hygrometer - a film hygrometer. How to check the humidity in the apartment using it? A film hygrometer is composed differently, therefore, the principle of operation differs from a hair hygrometer. The main distinguishing feature of a film hygrometer is the presence of an element that is sensitive. This component in the device is an organic film. The principle of operation - the organic film can stretch, or vice versa, shrink - it depends on the state of humidity in the air in the house. The humidity value is also displayed on the dial.

If there are relatively low temperatures in a certain humid room, then it is recommended to use hair or film hygrometers. Other devices are simply not suitable for determining the level of humidity in a room, they are practically not used.

Hygrometer

A hygrometer is the most reliable instrument for measuring indoor humidity. Its error should not be more than 1%. On sale are multifunctional devices that also show room temperature, pressure, etc.

However, many owners are interested in the question of how to determine the humidity in an apartment without a hygrometer. After all, this device is not always at hand. Buying a hygrometer is still worth it over time. However, other methods can be used to assess the humidity in the room. This will allow you to quickly take action to eliminate serious deviations.

How to increase air humidity

Knowing how to check the humidity in the apartment, you will see, albeit not an accurate, but an approximate picture of the real situation. Thanks to this, you can take the following steps to saturate it with moisture.

Humidifier

As a rule, such devices are designed to work in rooms up to 150 square meters. The principle of its operation is as follows: water is poured into a special tank to a certain level. When the humidifier is in operation, the water evaporates and saturates the air with its molecules.

There are three types of humidifiers.

Traditional type

A mechanical humidifier fulfills its mission with a built-in fan. It drives air through a special container with water, as a result of which the air is cleaned of dust and saturated with moisture.

Steam type

A similar appliance works in the same way as a kettle. The water boils and comes out in the form of steam. Some models have special nozzles for inhalation. Thus, the device can be used not only to increase air humidity, but also to treat the respiratory tract.

Disadvantages:

Hot steam, the temperature of which reaches 60 degrees, can lead, if safety rules are not followed, damage to human skin and the surface of nearby objects.
High noise level during operation.
Power consumption is quite high.

Ultrasonic type

Such a device, thanks to a built-in special membrane, turns water into steam. It is less noisy than mechanical and steam humidifiers. The water heating function contributes to the effective fight against microbes in the air.

Works only with distilled water or with special purification cartridges to purify and soften liquids. The latter should be changed regularly.

Folk ways to increase humidity

In the absence of a humidifier, you can use simple folk methods not only to determine the humidity in the room at home, but also to correct the situation.

In this case, the following measures are suitable:

The easiest way is to place a wet towel or sheet on top of the radiator. When the fabric heats up, water will begin to evaporate from the fabric. After the towel has dried, it should be wetted again.
An analogue of the first method is placing containers with water on heating devices. It will be necessary to add water to the inside of the container every few days.
You can place a container of water on pieces of furniture, such as a closet. With this method, the water does not evaporate as quickly as on the battery, but still, the humidity rises.

For the next method, you will need a bowl of water and a bandage. Having put a cup of water near the battery, one end of the bandage should be placed in water, and the other should be fixed to the heating element. Water will constantly rise along the threads of the bandage and evaporate into the air with the help of the heat emanating from the battery.
If the air is too dry, drying the washed laundry in the room can humidify it.
The presence of a large number of indoor plants has a beneficial effect on the normalization of the air humidity level.
Leave the bathroom door open after you shower. Thus, you get rid of excess moisture in the bathroom and saturate the air of other rooms with it.

What signs in the apartment will tell about high or low humidity

Various little things will help determine the humidity in the apartment.

You just need to pay attention

p, blockquote 25,0,0,0,0 ->

Condensation on the windows will be the first to talk about the increased water content in the air. All things in the house will become damp and the furniture will give off a woody smell. Then the sense of smell will begin to distinguish notes of putrefaction and decomposition, a specific smell of mustiness will appear.

Under such conditions, mold and fungus will quickly begin to develop, infecting households with various diseases.

If children develop diathesis, then this may be the reason for the high moisture content in the air. Asthma, cough, and headache attacks can confirm this. If you do not take action, you can get more serious diseases. Such as otitis media, bronchitis and decreased immune defenses.

Cancer cells multiply faster in high humidity.

The state of the human body also changes with a lack of moisture. People get tired faster, fall into drowsiness, excessive sweating occurs. This leads to drying out of all the mucous membranes of the body, which can have serious consequences.

p, blockquote 28,0,0,0,0 ->

If dust hanging in the air is clearly visible in the room, then the humidity level has dropped significantly. The air is dry and the particles (under the weight of water) do not settle on objects, but are easily drawn into the lungs.The aggravation of allergic reactions is confirmation of this.

The importance of moisture in human life is undeniably proven. Therefore, it will be prudent to constantly monitor its norm.

To do this, you can use both purchased measuring instruments and use the experience of ancestors. Paying attention to everyday little things will help you understand that abnormalities have occurred. This will quickly fix the situation and bring everything back to normal.

p, blockquote 30,0,0,0,0 ->

For more information, see the video:

p, blockquote 31,0,0,0,1 ->

The well-being and health of its owners depends on the state of the microclimate in the apartment. The level of humidity is one of the main indicators characterizing the parameters of the air that people in the room breathe. Therefore, it should be monitored periodically. This indicator should remain at the level established by sanitary and hygienic standards.

Therefore, the tenants of the house are faced with the question of how to determine the humidity in the apartment. For this, various methods are used. Even without special devices, everyone can measure the level of humidity in a room. The existing methods will be discussed in detail below.

Why measure humidity levels?

Studying the question of how to determine the air humidity in an apartment, it is necessary to consider first of all what this indicator affects. This will allow you to assess the importance of such a procedure.

Room humidity should not be above or below the specified range. Being indoors, a person may not immediately notice the inconsistency of the surrounding conditions with the requirements of sanitary and hygienic standards. But over time, such violations can affect the health of the owners.

Due to high humidity, asthma and allergies develop. A reduced value of this indicator leads to disorders in the state of the mucous membranes, decreased immunity, and aging of the skin. Children are especially sensitive to unfavorable living conditions. Therefore, parents are simply obliged to monitor the level of humidity in their apartment.

How to maintain the relative humidity in your home

We have already decided how to measure the state of humidity in the room, now it remains to figure out how to restore the optimal level of humidity.

If the humidity is low

Ventilate the room.

However, this method can not always significantly improve the state of the home microclimate, since in summer the outside air can be dry.

Also, when airing in the traditional way, dangerous microbes, allergens, dust, harmful gases and unpleasant odors can get into the apartment. But if you keep the windows constantly closed, then there is a high probability of encountering another problem of maintaining the microclimate - stuffiness (high levels of carbon dioxide).

Good ventilation is also important when ventilating rooms. A valve can provide fresh air to the room, but it will not be enough to ventilate a room where more than one person lives. The air passing through the supply and exhaust valve is not heated or cleaned.

A breather will help you to easily deal with the stuffiness and not let dangerous "guests" from the street into the house. This is a supply ventilation device that takes air from the street, heats it up, cleans it and delivers it into the room.

Damp mop regularly

rooms.

Set up an aquarium at home.

Keeping fish in the aquarium at home can also affect the humidity in the air. But remember to look after your fish and keep your aquarium clean. Can be placed on windowsills or near heating radiators
containers with water
.

Humidifier

- a good option for the home. This device will cope with the dryness of the home air, improve the microclimate and prevent the development of respiratory diseases.

Climatic equipment (air conditioner, breather, air purifier, Danfoss Eco thermostat)

complete with the MagicAir base station will help not only to track the data on the state of the microclimate in the house, but also to maintain optimal performance.

The base station collects information from room air about temperature, humidity and carbon dioxide concentration. All indicators are displayed on the smartphone screen in the MagicAir application.

If the humidity is high

The other side of the coin is too much moisture in the air.

Do not dry laundry in the apartment.
The best place to do this is on the balcony.
After taking water procedures, when the humidity in the bathroom can reach 100%, need to ventilate
... With good ventilation, it will be enough to open the bathroom door and the window closest to the bathroom, or turn on the breather.
You can purchase a special moisture absorption device
... The principle of operation of this device is the opposite of the process of air humidification: a built-in fan drives humid air through the device. An evaporator is also located inside, which converts moisture into condensate, which flows into a special container.

If you make the habit of constantly maintaining optimal air humidity at the required level, this will help reduce the risk of developing respiratory diseases and cases of allergic reactions. Normalized moisture has a beneficial effect on the skin, protects it from drying out and premature aging.

We create a comfortable microclimate in the nursery

In winterwhen the humidity of the outside air decreases naturally, the level of humidification of the indoor air sharp decreases due to the operation of the central heating system.
Dry hot air is not suitable for a room where a child is for a long time.

So how can you increase the humidity in your apartment? To create a favorable microclimate in the nursery necessary:

Open windows three times a day for 10-15 minutes;
Conduct thorough wet cleaning morning and evening;
Dilute on the windowsill mini greenhouse;
To arrange open water tanks: vases, aquariums, decorative fountains in places inaccessible to the child;
Hang up decorative containers for water evaporation on heating devices;
Use household humidifiers air.

Installing a household humidifier will help fast cope with excessive dryness of the air. Modern devices of the nozzle or membrane type are equipped with a system for regulating the intensity of moisture spraying and automatically turn off when the humidity in the room rises. Ultrasonic humidifier works quietly and safely, so it is convenient to use it in the baby's room.

Optimal air humidity in the apartment for a child

The level of humidity in the apartment where the child lives is a very significant indicator. The state of health of the baby and the peace of mind of his relatives depend on him.

The fact is that the child's body goes through the thermoregulation procedure in a special way, so dry air can negatively affect it. The air that a baby breathes out has one hundred percent humidity and body temperature. If the humidity of the surrounding area is low, the child will have to waste a lot of internal fluid to humidify the air. Loss of water by a child's body can lead to unpleasant consequences that are best avoided. The more humidified the air, the less money we will spend on medicines. This is the rule that should be taken as a basis.

In order to maintain this level, any of the following methods can be applied:

regular wet cleaning;
the presence of an aquarium;
wet towels on batteries or bowls of water in the room;
modern humidifiers.

Maintaining the necessary humidity in a children's room is not at all a difficult task, and the presence of undeniable advantages makes every parent strive to achieve it.

What should be the humidity in the apartment

The average room humidity for humans is 45%. Naturally, this indicator cannot be constantly at the same level and there are deviations that will not cause negative consequences. The humidity level in the house is different for rooms, depending on their purpose:

In the hallway, living room, bathroom, kitchen or dining room, humidity should be within 45-60%;
In dormitories for adult family members - 40-50%;
In children's rooms, humidity should be maintained in the range of 45-60%;
In the office and library, the lowest level is required - 30-40%. Printed paper and dampness can cause harmful substances to the air in the air, not to mention the negative effects of damp air on books and documents.

It is quite difficult to maintain a constant level of humidity at home, because it is extremely sensitive to many factors, the most common of which are:

Seasonal climate change;
Changes in weather conditions;
Work in a room with heaters or air conditioning systems;
Materials used for the construction of walls, their exterior and interior decoration.

In addition, the number and size of windows in the room, the presence of indoor plants and the way of housekeeping affect the level of moisture.