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Description
SGE 400/3BB GAS MASKMaximum chemical warfare protection. The SGE 400 3BB features a butyl rubber face sealthe same material used in military CBRN suitsproviding 200x better vapor resistance than natural rubber and complete impermeability to nerve agents (sarin, VX), mustard gas, and other chemical warfare agents. Three 40mm NATO filter ports let you mount the filter left, right, or center for optimal comfort and rifle shouldering. Ballistic rated polycarbonate visor.
Maximum chemical warfare protection. The SGE 400/3BB features a butyl rubber face seal—the same material used in military CBRN suits—providing 200x better vapor resistance than natural rubber and complete impermeability to nerve agents (sarin, VX), mustard gas, and other chemical warfare agents. Three 40mm NATO filter ports let you mount the filter left, right, or center for optimal comfort and rifle shouldering. Ballistic-rated polycarbonate visor. EN136:1998 certified. Made in Italy by Mestel Safety, assembled in USA. Filter sold separately.
The SGE 400/3 BB gas mask has 3x 40mm filter ports (left, right and center) Soft inner orinasal cup quick release harness with six adjustable straps. Controlled air flow prevents fogging of the visor.
Engineered to meet CBRN standards for chemical warfare protection, the SGE 400/3BB features:
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Three 40mm NATO Filter Ports (left, right, center)
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Ballistic Polycarbonate Visor
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92% visible light transmission
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Treated for chemical resistance
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Butyl Rubber Face Seal
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Impervious to nerve agents, mustard gas, and VX
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200x better vapor resistance than natural rubber
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Airtight seal under extreme conditions
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Resistant to ozone, oxidation, and high heat
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Six-Point Quick-Release Harness for rapid deployment
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Heat Resistance
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800°C (1472°F) for 5 seconds
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200°C (392°F) for 6 minutes
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Trusted by first responders, hazmat teams, and military operators, this mask delivers uncompromising protection in hostile environments.
Mask Specifications :
- Model: SGE 400/3BB
- Manufacturer: Mestel Safety (Italy), assembled in USA
- Filter Ports: 3x 40mm NATO (EN148-1 / DIN 3183)
- Face Seal Material: Butyl rubber (CBRN-rated)
- Visor Material: Polycarbonate with chemical-resistant coating
- Visor Light Transmission: 92%
- Visor Impact Rating: Resists 1" steel ball at 335 MPH
- Heat Resistance: 800°C for 5 sec / 200°C for 6 min
- Weight: 650g (S/M) / 690g (M/L)
- Certifications: EN136:1998, EU PPE Category III (Regulation 2016/425)
- Included: Mask only (filter sold separately)
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Compatible With: All 40mm NATO filters, powered respirators, airline systems
☢️Complete Your CBRN Setup
Multipurpose CBRN 40mm Filter - $54.95 - Required: Filter sold separately
Frequently Asked Questions
Q: What's the difference between SGE 400/3 and SGE 400/3BB? A: The SGE 400/3 has a silicone face seal. The SGE 400/3BB has a butyl rubber face seal, which provides superior resistance to chemical warfare agents (nerve agents, mustard gas) and meets stricter CBRN requirements. The 400/3BB is also slightly lighter. If you need maximum chemical protection, consider the 400/3BB version in our NBC Protective Kit.
Q: Why is butyl rubber better than silicone? A: Butyl rubber is impervious to nerve agents (sarin, VX), mustard gas, and other chemical warfare agents. Silicone provides good protection but doesn't meet the same military CBRN standards. Butyl rubber also has 200x better vapor resistance than natural rubber.
Q: What filters work with this mask? A: Any 40mm NATO threaded filter (EN148-1 / DIN 3183). We recommend our Multipurpose CBRN 40mm Filter ($54.95).
Q: Is this the same mask in the Tactical NBC Protective Kit? A: Yes. The Tactical NBC Protective Kit ($495.99) includes the SGE 400/3BB mask plus a filter, Tychem chemical suit, butyl gloves, overboots, and carry bag.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 5
Great Engine and Cabin Air filters
Color: gray
It is an exact match and was like replacement . I am not mechanically inclined and this took less than 5 mins -watched a You Tube video and this product was the exact size and fit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
★★★★★ 5
Good product
Color: gray
Nice fit. Easy yo install.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2026
★★★★★ 4
Exact replacements for ‘25 Forester air/cabin filters
Color: gray
Exact replacement set for ‘25 Subaru Forester. Reasonable cost, quality seems OK. Easy install.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
★★★★★ 5
Work Great
Color: gray
Works well in my car good quality and the cost is not bad compared to the other brands. Easy to install.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
★★★★★ 5
Dealer wanted $200, Changed them in 5 min
Color: gray
Good quality, saved a lot of money over having a dealer or mechanic change them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
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