MIRA CBRN Gas Mask Filter NBC-77 SOF 40mm Thread - 20 Year Shelf Life
- SKU:
- NBC77SOF
- Availability:
- Usually Ships in 24 Hours
In combination with a compatible full-face mask, mouthpiece assembly, or PAPR, the NBC-77 SOF reliably protects air passages against all known CBRN agents. Hard plastic construction delivers exceptional durability against shock and impact in demanding operational environments. Trusted by military personnel, CBRN specialists, and Special Operations Forces worldwide.
Key Features
- Standard STANAG 4155 (EN 148-1) Rd 40×1/7″ threads — fits widely available respirators worldwide
- Factory-sealed filters rated for 20-year storage — a cost-effective long-term investment
- Rated A2B2E2K2HgSXP3 D R — filters all known CBRN agents including radioactive iodine
- Used by military units, CBRN specialists, and SOF operators across the globe
Technical Specifications
| Diameter | 110 mm |
| Height | 85 mm |
| Weight | 335 g ±5% |
| Storage time | 20 years (factory sealed) |
| Breathing Resistance | EN Limit | NBC-77 SOF |
| @ 30 l/min | <140 Pa | 260 Pa |
| @ 95 l/min | <600 Pa | 980 Pa |
Filter Classification
| Type & Class Particle filter efficiency @ flow rate 95l/m | Particle filter efficiency @ 95 l/min | |||
| Sodium Chloride NaCl (S) Paraffin oil (L) |
EN | NBC-77 SOF | ||
| A2 - Organic gases & vapors | SX - CG, CK, PS | 99.95% 99.95% |
EN 99.95 99.95 |
>99.999% >99.999% |
| B2 - Inorganic gases & vapors | P3 - Particles | |||
| E2 - Acid gases & vapors | D - Dust | |||
| K2 - Ammonia & amines | R - Reusable | |||
| Hg - Mercury vapors | REACTOR - Radioactive iodine | |||
Certifications & Compliance
Application & Protection Scope
Provides protection against solid and liquid particles, pepper spray (OC), smoke, radioactive particles, bacteria, fungi, toxins, viruses, riot control agents (lachrymators, sternutators, vomiting agents), blister agents (vesicants), choking agents, blood agents, nerve agents, incapacitants, herbicides, pesticides, and toxic industrial chemicals (TICs).
- Riot control agents: CS, CR, CN, CNC, CNS, CA
- Blister agents: H, HD, HN1–HN3, L, H-L, CX
- Choking agents: CG, DP, PS
- Blood agents: AC, CK, SA
- Nerve agents: GB, GF, GD, GA, GV, VX, VR, VE, VG, VM
- Toxic industrial chemicals: benzene, toluene, ammonia, chlorine, hydrogen fluoride, sulphur oxides, chloroacetic acid, mercury vapors, and more
Storage & Maintenance
Store sealed in a clean location at −5 to +30°C with relative humidity below 80%. Sealed filters tolerate −30 to +50°C and up to 95% RH.
Do not attempt to regenerate filters. Never clean with compressed air or water. Refer to the label for the storage period (month and year).
Disposal: After use, treat filters as special refuse and dispose in accordance with the filtered substance and current waste treatment regulations. Dismantle from respirator before disposal as solid waste. Consult local authority regulations for guidance.
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