Tag - Is an air purifier useful?

Is an air purifier useful? Comparison of filtering effect between air purifier and mask

Nowadays, the epidemic situation is so severe that we need to keep ventilation indoors. This is an important part of doing well in epidemic prevention at home. If we can have a good air purifier at home, it would be better. But we all have such questions. Is it useful for epidemic virus to buy an air purifier at home? Picture source: Baidu Who is more effective, air purifier or mask? According to the analysis of the transmission way of virus, respirator [...]