????? Pollution Mask ??? N95, N99, P95 ??????? ?? ???? ???? ???? ?? ?? ??? ?? ?? ?????

???? ????? N95, N99, P95, R95 ?? Surgical Mask ???? Terms ???? ????? ?? ???? ?? ???? ???? ????? ???? ?? ?? ???? ?? ??????? ??????, Air Pollution Mask ?? ???? ??????? ???? ?? ??? ????

from Jagran Josh https://ift.tt/2PGQqUm