N95 respirator is one of nine kinds of particle protective respirators certified by NIOSH (National Institute for occupational safety and health). N95 is not a specific product name. As long as the product meets the N95 standard and passes the NIOSH review, it can be called N95 face mask, and the aerodynamic diameter and physical diameter can be 0.075 µ m ± zero point zero two zero µ The filtration efficiency is more than 95%.

Store in cool、dry、clean、ventilated places. Make sure the relative humidity is controlledin 80%. Keep away from corrosive gas.

Effect of N95 mask on aerodynamic diameter of 0.3 µ The filtration efficiency is more than 95%. The aerodynamic diameter of airborne bacteria and fungi spores is mainly in the range of 0.7-10 µ M, which is also within the protection range of N95 mask. Therefore, N95 respirator can be used for respiratory protection of some particles, such as grinding, cleaning and handling dust generated from minerals, flour and some other materials. It is also suitable for liquid or non oily particles produced by spraying, which do not produce harmful volatile gases. It can effectively filter and purify the inhaled abnormal odor (except toxic gas), help to reduce the exposure level of some inhalable microbial particles (such as mold, anthrax, Mycobacterium tuberculosis, etc.), but it can not eliminate the risk of contact infection, illness or death.

The U.S. Department of labor has recommended that health care workers use N95 masks to prevent airborne diseases such as influenza and tuberculosis.