The effect of kn95MEDICAL FACE MASK in preventing viruses is good, so kn95 masks are suitable for medical staff in hospitals. Of course, ordinary people can also use kn95 masks, but in daily life, ordinary people use disposable medical surgical masks or medical nursing masks Masks are totally enough.
If medical staff use n95 masks, they must replace them once every 4 hours. If ordinary people go out, as long as they don`t go to places with infected people or places where people are mixed, then an n95 mask can be recycled once or twice of.
There is no fixed replacement time for KN95 FACE MASK, the dust concentration in different environments is different, the use time of each person is different, the dust holding capacity of various kN95 masks is different, and the maintenance methods of N95 masks are different, all of which will affect the service life of N95 masks .
The kN95 mask is one of the 9 particulate dust masks certified by the National Institute of Occupational Safety and Health. "N" means not suitable for oily particles; "95" means the filtration efficiency reaches 95%. If you are outdoors or in a manpower-intensive area for a long time, generally speaking, you have to replace this mask after wearing it for four to six hours.
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