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 prevention is very effective, but most people don’t wear masks if they don’t go out, so back to today’s unfolding topic, how about the filtration efficiency of air purifier, Is it better than masks, In terms of purification principles, the answer is yes. For example, air purifiers with H11 and H13 level HEPA filters can filter 99.5% and 99.97% of particulate matter less than or equal to 0.3 microns. This filtering level is definitely higher than N95 masks, because N95 masks are greater than or equal to 0.3 The micron particle filt...