Hygienic requirements to microclimate of dwelling

Microclimate dwellings consists of four components: temperature, humidity, air mobility him and temperature enclosing the room surfaces.
From a hygienic point of view it is important that microclimatic factors were within acceptable limits and did not cause sharp fluctuations that violate normal teploobmena person.
Numerous studies have shown that the optimal temperature in the dwellings of 18-22 degrees (depending on climatic conditions).
In hospitals, the air temperature in the chamber for adults should be 20 degrees, in the ward for children 22nd, operating in 26 degrees.
The air temperature indoors usually varies depending on the outdoor temperature and the work of heating devices (especially with oven heating).
Within days Pets fluctuation of air temperature with oven heating within 4-6'c, while the Central - within 2-3 degrees.
The importance of air temperature fluctuations inside vertically and horizontally. Temperature fluctuations horizontally (from Windows to the opposite wall) should not exceed 2 degrees, vertical - 1 degree for every meter of the height of the room.
Heat transfer of a person depends not only on the temperature but also on the walls temperature, humidity, speed of air movement, so these factors also standardized.
To the body did not lose a lot of heat by radiation, temperature of the inner surface of fencings the room should not be lower than the temperature of the room more than 4-6 degrees. The most favourable humidity in the premises of 30-60%.
The air velocity in premises should not exceed 0.2-0.3 m/S. At high speeds, there is a feeling of draught.