Valved Mask with active carbon: CE /N95, N99 /AS NZS Standard: European: EN149: FFP1, FFP2,FFP3 American: NOSH N95,N99 Austrilia: AS/NZS 1716:1994Specification:1. Low breathing resistance with high filtration efficiency. Loaded polylene material without any toxic, irritating, stimulant, poison.2. Adjustable nosepiece and inner foam provide a custom seal for different facial sizes.3. Easy- ...