Indoor Air Quality Standard
1, physical
Temperature: 22~28℃ (air conditioning in summer); 16~24℃ (heating in winter)
Relative humidity: 40~80% (air conditioning in summer); 30~60% (heating in winter)
Wind speed: 0.3m/s (air conditioning in summer); 0.2m/s (heating in winter)
Fresh air volume: 30 а m3/(h people)
2. Chemistry
Sulfur dioxide: 0.50 mg/m3
Nitrogen dioxide: 0.24 mg/m3
Carbon monoxide: 10 mg/m3
Carbon dioxide: 0. 10%
Ammonia: 0.20 mg/m3
Ozone: 0.16mg/m3.
Formaldehyde: 0. 10 mg/m3
Benzene: 0. 1 1 mg/m3.
Toluene: 0.20 mg/m3
Xylene: 0.20 mg/m3
Inhalable particulate matter10: 0.15mg/m3
TVOC:0.60 mg/m3.
3. Biology
Total number of colonies: 2500cfu/m3
4. Radioactivity
Radon 222rn: 400bq/m3
How to improve air quality?
1. Give full play to the function of range hood. Whether cooking or boiling water, as long as the cooker is turned on, it is necessary to turn on the range hood, close the kitchen door and open the window at the same time, which is conducive to air circulation and eliminate pollutants.
2. Put down the lid when the toilet is flushed, and try not to open it when not in use.
3. It is best to use solid slow-release disinfectant in the water tank, and choose safe and effective air disinfection products to purify the air.
In addition, when cleaning, if possible, it is best to use a vacuum cleaner, or use a mop and a wet rag. If you use a broom, you should move lightly, and don't raise dust to aggravate air pollution. Try not to use carpets or feather dusters.
5, the use of air conditioning family, it is best to enable the ventilator. Among them, the heat exchanger with higher efficiency is the best, and some heat exchange efficiency can reach about 70%. The discharged cold air can effectively cool the hot fresh air inhaled from the outside, thus keeping the indoor air fresh. Another effective method is to use an air purifier.
6. Of course, the most effective and economical way to keep the indoor air fresh and clean is to ventilate frequently.