KN95 grade masks can prevent new coronavirus. KN95 masks, N95 masks are very effective in preventing new coronavirus pneumonia, followed by disposable medical surgical masks, the prevention of new coronavirus pneumonia is also very good. If you do not have the above mask, you can also choose a disposable ordinary medical mask. This disposable ordinary medical mask also has a certain protective effect. For ordinary people, this mask is also enough.
In addition, it should be noted that wearing a KN95 mask does not mean entering a safe. Even if wearing a KN95 mask, if you have close contact with patients with new coronavirus pneumonia, there is still a chance of contracting new coronavirus pneumonia. Therefore, even if you wear a mask, you should try to avoid contact with the above-mentioned people. www.ck-stone.com