The biggest cause of air pollution in Southeast Asia is that the exhaust emissions of motorcycles and cars exceed the environmental carrying capacity; the second is […]
Analysis of air supply method 1.1 First, we analyze from the principle of air. Polluted air generally has more particles, carbon dioxide, etc., which means that […]
Everyone has the responsibility to fight the epidemic and Corona-virus. Staying at home, segregating, protecting themselves and their families is the best way, home is a […]
The main function of people installing the fresh air system is to ventilate, by the way, the coarse filtering of large particles such as pollen. For […]