OLANSI teach you how to choose an air purifier
The arrival of an epidemic has made us all more deeply realize that health is the greatest wealth. In terms of air environment safety, the ravages of bacteria and viruses, sandstorms, and excessive formaldehyde in new houses have also caused more and more friends to pay attention to air purifiers. Recently, many friends have discussed this. The effectiveness of air purifiers has been recognized by relevant national departments a long time ago, and a series of standards have been issued,...