The FFP2 category of masks refers to those that meet the European (CEEN 149:2001) standard, which is divided into three levels: FFP1, FFP2 and FFP3. Different from the American standard, its detection flow rate is 95L/min and dust is generated with DOP oil.
- The purpose is to prevent or reduce the dust in the air into the human respiratory organs to protect the safety of personal protection equipment;
- Material: anti-particulate masks are mostly made of inner and outer layers of non-woven cloth, the middle layer of filter cloth (melt blown cloth) structure;
- Filtering principle: filtering dust mainly by the middle of the filter cloth, because the meltblown cloth has its own characteristics with static electricity, can adsorb very small particles. Because the dust is adsorbed on the filter element, and the filter element cannot be washed with static electricity, the filter element of the self-priming filter anti-particulate respirator needs to be replaced regularly
- Note: The international requirements for the use of anti-particulate masks are quite strict. Anti-particulate masks belong to the first level of personal protective equipment, which is higher than earmuffs and protective glasses. The more authoritative test certification has the European CE certification and the United States NIOSH certification, and the Chinese standard and the United States NIOSH similar
- Protective objects: Protective objects are divided into KP and KN. The so-called KP is able to protect oily and non-oily particles, while KN is only able to protect non-oily particles
- Protection level: China's protection level is divided into KP100, KP95, KP90 and KN100, KN95, KN90. Among them, KP100 and KN100 have the highest filtration efficiency, which is required by the national standard to be greater than 99.97%, so they are also the most safe for use.
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