M3 and n95 mask blocking function

There are several types of masks, including gauze masks, surgical masks, activated carbon masks, and protective masks. However, labor insurance masks cannot be used as medical masks. It is understood that disposable medical masks can be used to block inhalable particles from entering the human body. Medical masks are mainly for respirable particulate matter above PM3, and N95 masks have 95% blocking function for respirable particulate matter below PM2.5. Experts suggest that wearing a thicker mask will provide better protection.