These masks are intended to be used for protection against solids, such as those from minerals,coal,iron ore,flour and certain other substances.They are extremely durable with a soft and comfortable inner surface,also have an adjustable nose piece and secured head straps to provide proper fit.These masks have a 510(K) number for the medical market and can be used TB situations as recommended by OSHA.

NIOSH Approval: TC-84A-5411 FDA 510 （K）：K020474

20 / box

240 / case