Scientific common sense about masks（3）7. Can protective masks be washed? Can it be disinfected?3M particulate protective masks (sometimes called disposable masks) cannot be used after cleaning and disinfection, because the cleaning and disinfection methods usually lead to reduced filtration efficien
Scientific common sense about masks（2）4. Is it necessary to use medical protective masks to protect against viruses? What is the difference between medical N95 and N95 protective masks?Medical protective masks are protective masks designed to protect medical workers in a specific medical environment
Scientific common sense about masks（1）1. What kind of particulate protective mask (sometimes called disposable mask) can be used to help protect against viruses?The World Health Organization (WHO) and my country's medical management agencies recommend that, in some cases, use N95 approved by NIOSH,
Mask selection method and fabric introduction（2）For the filter material of a good protective mask, the following three conditions should be met. One is that the filter efficiency is high when the mask is in good contact with the user's face, the other is low breathing resistance, and the third is th
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