The Knowledge Of Mask

o which masks are effective against the new coronavirus?








Masks can be divided into four categories according to their use:




(1) ordinary gauze mask;




(2) medical (protective or surgical) mask;




(3) daily protective masks (mainly used to prevent haze, such as N95, KN95, etc.);




(4) dust respirator, lampblack respirator (respirator, mainly for occupational protection).




In addition to ordinary gauze masks, other masks have a good protection against new coronavirus.


source: www..texfiberchina.com