mask usage

1, the purpose is to prevent or reduce the dust in the air into the human respiratory organs to protect the safety of individual protection supplies;

2. Materials: most of the anti-particulate masks are made of two layers of non-woven cloth inside and outside, and one layer of filter cloth (fused spray cloth) in the middle.

3, filtering principle: filtering dust mainly by the middle of the filter cloth, because the melting spray cloth has its own characteristics of static electricity, can absorb very small particles.Since the dust is adsorbed on the filter element, and the filter element is electrostatic and cannot be washed, the filter element of the self-absorption filter anti-particulate respirator needs to be replaced regularly

4. Note: the international requirements for the use of anti-particulate masks are quite strict. The anti-particulate masks belong to the first class of personal protective equipment, higher than ear muffs and protective glasses.The more authoritative inspection certifications are the European CE certification and the American NIOSH certification, while the Chinese standard is similar to the American NIOSH

5. Protection objects: protection objects are divided into KP and KN. The so-called KP is able to protect oil and non-oil particles, while KN is able to protect only non-oil particles

• Protection level: protection level in China is divided into KP100, KP95, KP90 and KN100, KN95, KN90.The highest filtering efficiency of KP100 and KN100 is higher than 99.97% according to the national standard, so it is the most safe to use.

Specification

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