Masks are a kind of sanitary products
Masks are a kind of sanitary products, which are generally worn on the mouth and nose to filter the air entering the mouth and nose to block harmful gases, odors, droplets, viruses and other substances. They are made of gauze or paper. Masks have a certain filtering effect on the air entering the lungs. When respiratory infectious diseases are prevalent, when working in dust and other polluted environments, wearing masks has a very good effect. Masks can be divided into air filter masks and air supply masks. Mask classification: N series: protection of non-oily suspended particles without time limit R series: protection of non-oily suspended particles and sweat oily suspended particles with a time limit of eight hours P series:
Therefore, the anti-aerosol-containing filter material must undergo special electrostatic treatment to achieve Air Through Nonwoven Suppliers the purpose of preventing fine dust. Therefore, each series is divided into 3 levels: 95%, 99%, 99.97% (referred to as 95, 99, 100 for short), so there are 9 sub-categories of filter media. EU EN149 standard: FFP1 type mask: minimum filtration effect》 80% FFP2 mask: minimum filtration effect》 94% FFP3 category mask: minimum filtration effect》 97% Australia AS1716 standard P1: minimum filtration effect》 80% P2: minimum filtration effect》 94%
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