N95 mask is a particle protective mask, which has a good effect in preventing novel coronavirus and other virus infections. Besides N95 masks, you can also choose KN95 masks and disposable surgical masks to effectively prevent novel coronavirus and other virus infections.
Ordinary medical masks also have certain effects in preventing virus infection. However, if you are in a hospital environment or an epidemic area, and you are more likely to come into contact with novel coronavirus, then it is not recommended to use ordinary medical masks. It is recommended to use N95 mask, KN95 mask or disposable medical surgical mask.
N95 mask replacement time:
This is a problem that many people care about. Most N95 masks are disposable consumables, especially for preventing infectious diseases caused by the spread of viruses, bacteria, fungi and other pathogens in the air.
N95 mask can't be used for a long time, otherwise, it may cause bacteria to accumulate and multiply on the surface of the mask, and eventually pollute the inner surface of the mask, greatly reducing the efficiency of disease prevention. This is slightly different from smog prevention and industrial dust inhalation. In the latter case, it can be worn for a longer time.