KN95Protective mask 14506

KN95Protective mask

(1) Standard sources
This standard is a compulsory national standard in China, proposed by the State Administration of Work Safety and under the jurisdiction of the National Technical Committee for Standardization of Personal Protective Equipment (SAC / TC 112).
(2) Technical content
In terms of scope of application, this standard is applicable to ordinary self-priming filter type respiratory protective equipment that protects various types of particulate matter. Typical ones are masks and other special environments (such as oxygen-deficient environment, underwater operation, etc.) are not applicable.
From the definition of particulate matter, this standard defines various forms of particulate matter, including dust, smoke, mist and microorganisms, but does not define the size of particulate matter.
From the point of view of the filter element, it can be divided into KN type for filtering non-oily particulate matter and KP type for filtering oily and non-oily particulate matter. similar.