Average quality, not recommended.
The N95 mask is one of the nine types of particulate matter protection masks certified by NIOSH (National Institute for Occupational Safety and Health). N95 is not a specific product name, as long as it meets the N95 standard, and through the NIOSH review of the product can be called N95 type mask, can be aerodynamic diameter physical diameter of 0.075?m ± 0.020?m particles of filtration efficiency of 95% or more.
N95-type mask on the aerodynamic diameter of 0.3?m particles of the filtration efficiency of more than 95%. The aerodynamic diameter of airborne bacteria and fungal spores mainly varies between 0.7-10?m, which is also within the protection range of N95 type masks. Therefore, N95 type mask can be used for some particles of respiratory protection, such as grinding, sweeping and processing of minerals, flour and certain other materials and other processes generated by the dust, but also applies to the liquid produced by the spraying or non-oily does not produce harmful volatile gases of the particulate matter.