Medical masks include disposable medical masks, medical surgical masks, and medical protective masks. The three kinds of medical masks have requirements for microbiological indicators. The indicators include two situations: one is non-sterile masks (some companies mark “non-sterile”), which should meet the microbiological control standards, that is, a certain amount of bacteria is allowed, but it must be Within the control range; the second is to sterilize masks, which do not allow bacteria to exist.
Therefore, both non-sterile medical masks and sterilized medical masks have protective functions, which can block droplets and prevent cross-infection.
Both sterile and non-sterile disposable medical masks are in compliance with the YY/T 0969-2013 “Disposable Medical Masks” standard and can be used.