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
The birth and development history of masksIn recent times, due to the epidemic, masks have become a must-have item that various countries are vying to buy, which has made a common daily item a hot commodity. In order to meet the demand for masks, many companies in my country have begun to transform
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
Mask selection method and fabric introduction（1）1. Dust blocking efficiencyThe dust blocking efficiency of the mask is based on its blocking efficiency for fine dust, especially for respirable dust below 2.5 microns. Because dust of this particle size can directly enter the alveoli, it has the great
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