[Rationale for the permissible level of carbon dioxide in indoor air in residential and public buildings with the permanent human presence].

On the base of the analysis of domestic and foreign data on the issue of rating of carbon dioxide in the indoor air of residential and public buildings and results of own research there is justified an permissible level of carbon dioxide in the indoor air of residential and public buildings with a permanent human presence. The concentration of carbon dioxide in the air space, not higher 1000 ppm (0.1%) was established to have no negative impact on the human health and performance, with this content of carbon dioxide there is no accumulation of toxic chemicals and registered by devices reducing of the oxygen content in the air of spaces, it meets the regulatory requirements for content dioxide carbon in the indoor air, applicable in most of foreign countries.