KP category: KP90, KP95, KP 100?

According to GB 19083-20 10, there are three filtration efficiency grades of medical protective masks, which are 95%, 99% and 99.97% respectively, all of which are only suitable for non-oily particles, which conforms to the characteristics of hospital environmental protection particles without oily substances.

GB2626-2006 is a compulsory national standard for the certification management of production license for industrial products of particulate matter protective masks. There are three grades of filtration efficiency, which are 90%, 95% and 99.97% respectively. There are two kinds of filter media, KN and KP, which are different from GB 19083, but the two standards are comparable in the testing method of filtration efficiency.

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Application and classification of masks;

Wearing a mask embodies two purposes, protecting the wearer or protecting the environment. Wearing any mask will block saliva drops produced by talking or coughing, which will protect others or the environment; Most people wear masks to protect themselves, such as preventing pollutants in the air or reducing the risk of infection. This is the main purpose of professional protective masks.

Professional protective masks at home and abroad are mainly represented by particle protective masks (commonly known as dust masks in the past), medical surgical masks and medical protective masks, which have applicable national standards or industry standards respectively, and the products are only allowed to be used at work after testing and certification. In terms of protective function and usage, there will be some overlap and overlap between different masks, each with its own characteristics.

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