NBC-17 SOF 40mm CBRN Gas Mask Filter – NATO Thread | 10-Year Shelf Life | P3+A2B1E1K1 Protection
About this product
Military-Standard Protection Against CBRN Threats
The NBC-17 SOF 40mm threaded gas mask filter delivers certified defense against chemical, biological, radiological, and nuclear (CBRN) hazards. Engineered for NATO-standard respirators, this filter integrates with full-face masks, mouthpiece assemblies, and PAPR/TAPR systems (excluding MB-90 PAPR*) to safeguard against toxic agents in high-risk environments.
Critical Compatibility Note: Due to shortened threading, the NBC-17 SOF filter is NOT compatible with the MB-90 PAPR unit.
Key Features & Benefits
- 10-Year Factory-Sealed Shelf Life – Reduce long-term costs with a decade of reliable readiness when stored unopened (-5 °C to +30 °C).
- NATO-STANAG 4155 (EN 148-1) Compliance – Rd 40×1/7" threading ensures interoperability with 40 mm NATO respirators globally.
- Military & Specialist Trusted – Deployed by armed forces, CBRN response units, and special operations personnel worldwide.
- Robust Hard-Polymer Construction – Impact-resistant design withstands operational stress and physical damage.
- CE-Certified & EN 14387+A1 Compliant – Tested to European standards for maximum respiratory safety; CE mark (“CE” symbol) present.
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Broad-Spectrum Filtration Rating: A2B1E1K1P3 D R
- P3 (>99.999% particle filtration @95 L/min NaCl & paraffin oil; EN P3 reference ≥99.95%)
- A2: Organic vapors & gases (boiling point >65 °C)
- B1: Inorganic gases (e.g., chlorine, hydrogen sulfide)
- E1: Acid gases (e.g., sulfur dioxide)
- K1: Ammonia & amines
- D: Dusts (tested against dolomite clogging)
- R: Reusable
Technical Specifications
| Parameter | Value |
|---|---|
| Thread Standard | 40 mm NATO (STANAG 4155 / EN 148-1, Rd 40×1/7") |
| Dimensions | 90 mm Ø × 85 mm H |
| Weight | 205 g ±5% |
| Breathing Resistance | 260 Pa @30 L/min; 980 Pa @95 L/min |
| Particle Efficiency | >99.999% (NaCl & paraffin oil @95 L/min) |
| Storage Temp Range (sealed) | −30 °C to +50 °C (RH <95%); ideal −5 °C to +30 °C (RH <80%) |
| Shelf Life | 10 years (factory sealed; month/year printed on filter label) |
Comprehensive Threat Protection
- CBRN Agents: Nerve (sarin, VX), blister (mustard gas), choking (phosgene), blood (HCN, cyanogen chloride).
- Toxic Industrial Chemicals (TICs): Benzene, toluene, vinyl chloride, fluorine/hydrogen fluoride, chloroacetic acid, aldehydes, phosphoric acid derivatives, mixtures of inorganic acids and organic substances.
- Aerosols & Particulates: Radioactive dust, viruses, bacteria, smoke, agricultural chemical combustion products.
- Riot Control Agents: CS gas, bromoacetone, organic arsenic compounds.
Performance Validation (EN 14387+A1)
Testing conditions: 70% humidity, 30 L/min flow rate (equivalent to moderate work).
| Test Gas (Class) | Concentration | Breakthrough Time (min) | Dynamic Adsorption Capacity |
|---|---|---|---|
| Cyclohexane (A2) | 5,000 ppm (17.5 mg/L) | >37 | >19.425 g |
| Chlorine (B1) | 1,000 ppm (15 mg/L) | >30 | >2.700 g |
| Hydrogen Sulfide (B1) | 1,000 ppm (7.1 mg/L) | >60 | >2.520 g |
| Hydrogen Cyanide (B1) | 1,000 ppm (5.6 mg/L) | >60 | >5.820 g |
| Sulfur Dioxide (E1) | 1,000 ppm (13.3 mg/L) | >30 | >2.430 g |
| Ammonia (K1) | 1,000 ppm (3.5 mg/L) | >60 | >1.260 g |
Usage & Maintenance Guidelines
Lifetime Estimate: Usage duration depends on contaminant concentration; estimate by comparing workplace exposure levels to the minimum DAC values above.
Storage: Keep factory-sealed in original plastic. Ideal: −5 °C to +30 °C, RH <80%. Tolerates −30 °C to +50 °C, RH <95% (sealed). Do not regenerate; never clean with compressed air/water; do not use past expiration date.
Disposal: Treat as hazardous/special waste. Follow local regulations for the filtered substances. Remove from respirator and dispose of as solid special refuse.
Who Relies on the NBC-17 SOF?
Military & law enforcement units • HAZMAT response teams • Pandemic preparedness organizations • Industrial safety officers (chemical plants, labs) • Disaster relief organizations
Engineered for survival. Trusted by professionals.
* MB-90 compatibility exception due to shorter filter threading.
Deployed by:
The United States
DEFENSE
The United States
HOMELAND SECURITY
The United States
BORDER PROTECTION
The United States
GUARD
The United States
CORRECTIONS
The United States
DEPARTMENT TX
The United States
The United States
DEPARTMENT
Portugal
INTERIOR
Ukraine
DEFENSE
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FAQs
Have a Question?
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Are there any agency discounts offered?
Yes, please contact our sales department for agency discounts, whether for an individual or agency wide.
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What is the standard lead time?
1-3 business days upon payment receipt.
