stand: BFE :99%,PFE :99%, Polypropylene inner and outer facing assures comfortable on the inside and protection on the outside
Function:anti-coronavirus / prevent flu / anti smoke / dust
Remark suitable for medical person or related personnel, protect against respiratory diseases transmitted in the
air.The main functions are as follows:
1. The filtration level of the product for non oil particles is level 1, Greater than or equal to 95%;
2. Suction resistance shall not exceed 343.2pa;
3. The water level on the external surface shall not be lower than level 3;
4. According to the specified experimental method, meet the requirements of microbial indicators;
5. The materials used are not inflammable;
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