badel20844
We are surrounded by air. We at least breath in and out 20,000 litres of air every day. How healthy is the air?
There is a range of aspects to determine air quality. Oxygen and carbon dioxide concentration in the air. Oxygen decrease and carbon dioxide cause stuffiness in the premises. Content of harmful substances and dust in the air. High content of dust, tobacco smoke and other substances in the air are harmful for the human organism and can cause various lung and skin diseases.
