The filtration principle of the ffp2 mask filter material is physical barrier, and the filtration effect is not affected by factors such as moisture. It is more suitable for use in summer prone to sweating and humid environments. It can be worn all day long and can be used by heat. The water rinse is reusable.
FFP2 protective masks require a filtration efficiency of no less than 94% for oily and non-oily particles.
FFP3 protective masks require a filtration efficiency of no less than 99% for oily and non-oily particles.
Because the requirements for FFP3 protective masks are too high, the FFP2 protective mask certification certificate has become a market access certificate that domestic mask manufacturers interested in exporting to Europe are very eager to obtain.
The filtration efficiency of ffp2 mask filter material for bacteria and PM2.5 particles in the air can reach more than 95%, reaching the filtration standard of KN95 masks.
The extremely high porosity and ultra-thin thickness of <5μm give it better air permeability, low breathing resistance and comfortable wearing.
In addition, the PTFE membrane is naturally hydrophobic, and the filtration mechanism is physical and mechanical interception (pore size interception method). The interception rate will not be attenuated due to moisture in the exhaled breath. Compared with ordinary melt-blown cloth masks, the protective effect of electrostatic adsorption is more stable and lasting.
ffp2 mask filter material is prepared using a unique biaxial stretching technology, which can ensure complete retention of bacteria and other impurities while having a large flux.
The material is resistant to high temperatures, strong acids and alkali, and has wide chemical applicability. When used for gas filtration, it can achieve 100% retention of various phages, bacteria and particles above 0.02um.
PTFE microporous membrane has high filtration efficiency and can meet the filtration efficiency level requirements of sub-high efficiency, high efficiency and ultra high efficiency air filters.
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