Recently, we often we see how dependent people from the surrounding nature.He has also broken the environment as a response to global warming, climate change and other disturbances of normal (usual) conditions of existence has a negative impact on the health of individuals not suffering from any ailment, and almost all the people who inhabit the planet Earth.
urgency of this problem is confirmed by the World Health Organization ACCOUNTS, statistical indicators of growth of somatic and infectious diseases, decreasing life expectancy, as well as a manifestation of other negative developments in a wide range of medical and statistical data.And all this at the present level of development of medical technologies and vast experience in the treatment and prevention of almost all occurring in the human disease.
solve at least partially the problem can be the creation of a favorable microclimate of their homes and workplaces.Regulate the temperature at the established health standards, or do it just for the person comfortable we have learned long ago.But in addition to temperature characteristics, there are many other criteria for assessing indoor climate.Among them, the relative humidity plays an important role.From the amount of moisture in the air depends on the state of health of people, their working capacity, the ability within a specific room to get a good quality holiday.
low humidity adversely affects the skin and mucous membranes.Their drying may cause micro-cracks, and this opened the way for the penetration of various infections.High humidity causes a feeling of heaviness, adversely affects the cardiovascular system and other systems of the human body.
optimum humidity in the apartment has a clear framework.To classify this indicator, you can use the following standards:
- between 20% and below - corresponds to extremely low humidity;
- from 30 to 40% - just low;
- from 40 to 55% - the optimal humidity;
- from 60 to 65% - is an indicator of high humidity;
- from 70 to 75% - high humidity;
- from 75% and above - the humidity is very (extremely) high.
to recall what the relative humidity, we turn to the physics course secondary school level.From the first reading of the definition of this magnitude it looks a bit confusing and unclear.But few understood, it becomes clear that the relative humidity is the amount equal to the ratio of the amount of moisture (steam) which is in a certain volume of air (absolute humidity) to the amount of the maximum possible amount of water that may be present in the air at the same temperature.This value is measured in percent.
If the first part of the expression does not cause any particular problems, it is necessary to understand the second.Affairs that the water vapor can not be dissolved in the air indefinitely, there comes a time when the steam becomes saturated and the excess moisture entering the air precipitates as condensation, rain, fog or dew.This rate depends on the temperature and pressure.
Determination of relative humidity is performed by a variety of devices.Modern industry has established production of various psychrometers, hygrometers, thermohygrometers, temperature gauges and wet bulb temperatures, humidity sensors, moisture meters, anemometers and other instruments.But the main thing that went on sale technical device that can control the level of humidity.
raise the relative humidity of the air by means of special humidifiers, air used to dry the air-conditioned, equipped with this function.
