Mira Safety Cbrn Gas Mask Filter Nbc-77 Sof 40Mm Thread

The Mira Safety NBC-77 SOF 40mm filter canister is a CBRN protective filter designed for serious users who need reliable defense against chemical, biological, radiological, and nuclear threats. Built to military standards and trusted by special operations forces worldwide, this filter pairs with any standard 40mm NATO-threaded respirator—including full-face masks, mouthpiece assemblies, or powered air-purifying respirators (PAPR)—to create a complete protective system. Whether you're preparing for worst-case scenarios, training in hazardous environments, or maintaining tactical readiness, the NBC-77 SOF delivers the filtration depth you need without compromise.

The filter housing is engineered from hard plastic, making it exceptionally resistant to shock and impact damage during field use. This rugged construction translates to genuine durability in demanding conditions, not just on the bench. The NBC-77 SOF filters all known CBRN agents, including radioactive iodine, and carries European certification (CE marking) with compliance to EN 14387:2004 + A1:2008 standards. The rating of A2B2E2K2HgSXP3 D R covers the full spectrum of threats you're likely to encounter in realistic scenarios.

A standout feature is the 20-year shelf life, which means your investment in protection doesn't depreciate into obsolescence every few years the way some filters do. Stock these, store them properly, and they'll be ready when you need them. The NBC-77 SOF's widespread adoption among military and CBRN specialist communities isn't accident—it's the result of genuine performance and reliability where it matters most.

Key Features

• Filters all known CBRN agents including radioactive iodine
• Compatible with standard 40mm NATO-threaded respirators (EN 148-1 Rd 40x1/7")
• 20-year shelf life reduces long-term replacement costs
• Hard plastic construction resists shock and impact damage
• European certified (CE) and compliant with EN 14387:2004 + A1:2008
• Rating: A2B2E2K2HgSXP3 D R
• Trusted by military, CBRN specialists, and special operations forces

Specifications

Frequently Asked Questions

Will this filter work with my respirator mask?

The NBC-77 SOF uses the standard 40mm NATO thread (STANAG 4155 / EN 148-1 Rd 40x1/7"), so it's compatible with any full-face mask, mouthpiece assembly, or PAPR equipped with matching 40mm threads. Check your mask's thread specification to confirm compatibility.

What threats does this filter protect against?

The NBC-77 SOF filters all known CBRN agents, including radioactive iodine. Its A2B2E2K2HgSXP3 D R rating covers organic vapor, inorganic vapor, acid gas, ammonia, mercury vapor, sulfur dioxide, and particulate hazards in the protection categories specified.

How long can I store these filters?

The NBC-77 SOF has a 20-year shelf life, meaning filters stored in appropriate conditions remain effective for up to 20 years from manufacture. This extended lifespan makes them practical for long-term strategic stockpiling.

Is this filter used by military or professional CBRN personnel?

Yes. The NBC-77 SOF is used by military personnel, CBRN specialists, and special operations forces worldwide and is certified to European standards (CE marked, EN 14387:2004 + A1:2008 compliant).