Secrets you don’t know about air purifiers
PM2.5 is not as easy to deal with as you think We found that it has many unexpected features. Many of the methods that we think are effective have become weak. Diffusion ability: The diffusion ability of polluted air is extremely powerful and rapid. In an outdoor polluted environment, a closed clean space will be neutralized by pollution once it is opened for about 1 second. This feature invalidates many measures that are considered effective. That's why the N95 mask should be...