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CBRN Gas Mask Filter NBC-77 SOF 40mm Thread - 20 Year Shelf Life
$79.99
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FAQs
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What contaminants does the NBC-77 SOF filter protect against?
The NBC-77 SOF filter is CBRN-rated, offering protection against chemical warfare agents (CWA), biological threats, radioactive particles, and toxic industrial chemicals (TICs).
Is this filter compatible with my gas mask?
Yes, it features a universal 40mm NATO threading (EN 148-1), making it compatible with most professional-grade gas masks used by military, law enforcement, and emergency responders.
How long does the NBC-77 SOF filter last during use?
Under standard testing conditions, the filter provides over 6 hours of protection against blister agents. The actual duration depends on contaminant concentration, environmental conditions, and breathing rate.
What is the shelf life of the NBC-77 SOF filter?
When stored correctly, the sealed filter has a 20-year shelf life, ensuring long-term reliability. The expiration date is marked on the filter label and should be checked before use.
Can I reuse the filter after exposure to contaminants?
No, once the filter has been used and exposed to contaminated air, it cannot be cleaned, regenerated, or reused. It should be discarded after significant exposure or when breathing resistance increases.
How should I store my NBC-77 SOF filter for maximum shelf life?
Store unopened filters in a cool, dry place at:
- Ideal Temperature Range: -5°C to +30°C (23°F to 86°F)
- Relative Humidity: Below 80%Sealed filters can also tolerate -30°C to +50°C (-22°F to 122°F) with RH below 95%. Keep filters away from direct sunlight, chemicals, and moisture.
Does the NBC-77 SOF filter provide oxygen?
No, this is a filter-only system and does not supply oxygen. It should not be used in low-oxygen environments such as confined spaces without proper ventilation.
What certifications does this filter have?
The NBC-77 SOF filter meets EN 14387:2004 + A1:2008 European safety standards and other military-grade protection requirements.
When should I replace my filter?
Replace your filter if:
- It has reached its expiration date.
- You experience increased breathing resistance.
- The filter has been exposed to high concentrations of hazardous substances.
Can this filter protect against tear gas?
Yes, the NBC-77 SOF filter provides effective protection against riot control agents like CS (tear gas), CN gas, and OC (pepper spray).
Is this filter suitable for nuclear fallout protection?
Yes, the NBC-77 SOF filter is designed to block radioactive particles and airborne nuclear contaminants. However, it does not protect against radiation exposure from direct contact, ingestion, or gamma radiation.
Can I use this filter for industrial or laboratory work?
Yes, it is effective against toxic industrial chemicals (TICs) and is used by HAZMAT teams, laboratory personnel, and emergency responders for hazardous material protection.
How should I dispose of a used NBC-77 SOF filter?
Used filters are classified as special refuse and must be disposed of according to local hazardous waste regulations. Never attempt to clean the filter with compressed air or water.
Does the NBC-77 SOF filter contain activated carbon?
Yes, it features high-efficiency activated carbon and HEPA filtration media, ensuring maximum adsorption of harmful gases and particles.
Can I travel with this filter on an airplane?
Yes, unopened filters can usually be transported in checked or carry-on luggage, but airline and country-specific regulations vary. Always check with local authorities before traveling.