We highly recommend bundling items together to reduce your overall shipping cost.

Superior Filtration. Protection from Bacterium and certain Viruses.
last inspection date 02/16
Protection from Countless Inorganic and Organic threats.

For FM50/M50 masks. This price is for a pair of filters, ie. one for each side of the FM50/M50 gas mask. Provides protection from Chemical, Biological and Radiological Warfare Agents in accordance with NATO requirements. Also for certain toxic industrial chemicals such as chlorine, hydrogen sulfide, sulfur dioxide and organic vapors with a boiling point of above 65ºC. Specificaions: - Classification: Mil Spec - Weight (approx): 159g - Breathing Resistance (approx): 25mm H2O at 42.5 l/min - Packing: Foil - Shelf Life (if left in packaging): 5 years - Filter Body Style: Conformal Suitable Protection Against: - Arsine - Asbestos - Bacteria - Benzene - Blister Agent - Blood Agent - Bromine - Carbon Dioxide - Carbon Monoxide - Carbon Tetrachloride - Chlorine - Chlorine Dioxide - Chloroacetophenone (CN) - Chloropicrin - o-Chlorobenzylidene Malononitrile (CS) - Cyanogen - Cyanogen Chloride (CK) - Cyclohexane - Fluorine - Formaldehyde - Hydrogen Chloride - Hydrogen Cyanide (AC) - Hydrogen Sulfide - Lewisite - Mustard (HD) - Nerve Agent - Nitrogen Dioxide - Nuisance Dusts - Nuisance Odors - Oleoresin Capsicum (OC, Pepper Gas) - Organic Vapors w/ Boiling Point >65 Degree C - Particulates - Phosgene - Phosphine - Radioactive Particulates - Sarin (GB) - Soman (GD) - Sulfur Dioxide - Tabun (GA) - Toluene - Virus - VX - Xylene

New, sealed in original wrap.

NSN: 4240-01-529-2289

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Important Notice for International Buyers:
Please be aware that import duties, taxes, and customs charges are not included in the item price or shipping cost. These additional charges are the buyer's responsibility. Hero Outdoors - No Tariffs, No Worries!

To Our Valued U.S. Customers - No Tariffs, No Worries!

As of March 4th, 2025, the U.S. government has introduced a 25% tariff on goods produced in Canada and valued at $800 USD or more when sold to buyers in the United States.

YOU WILL NEVER PAY TARIFFS WHEN SHOPPING WITH HERO OUTDOORS!

We are a proud Canadian business, and we deeply value our U.S. customers. These new tariffs will not affect your experience with us. We've got it covered!

What This Means for You:

No Extra Costs - The price you see is the price you pay.
No Surprise Customs Fees - We take care of everything.
Same Reliable Service - Fast, smooth shipping without delays.

We're committed to keeping your shopping experience hassle-free, and we'll always go the extra mile for our U.S. customers.

Shipping To Remote Locations In North America That Are Far From Shipping Hubs Or Are Served By Air Service Are Not Eligible For Hero Outdoors Flat Rate Shipping Fees.