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A4 Forsheda Gas Mask Respirator

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Forsheda A4 Gas Mask

These were made in response to 9/11 and have been deployed in the US, Sweden, Norway, and Turkey. Rigorously tested, NBS-rated, and engineered with military technologies and easy-to-use civilian features.

The Forsheda A4 is a full-face respiratory system gas mask that protects the face, eyes, and respiratory organs. Features include an anti-fogging system, increased field of vision, and single-unit harness with customizable strap-and-buckle system.

Offers protection from chemical, biological, and radioactive hazards, including solid and liquid particles, bacteria and viruses, and and chemical and organic gasses. Meets NATO’s NBC standard.

Gas Mask Highlights
Anti-fog and dual-air system  
Specialized lens system made from high-strength stable polymer
Extra-wide field of vision range
Clear-speech exhalation valve
Fully adjustable 6-point harness for snug and secure fit
Civilian-friendly, minimal training necessary
Lightweight, foldable, and easy to store

Engineering and Features
Eyepieces: Polysulfone lens system fitted internally and externally for stability. The material remains rigid and transparent in temperatures from -100? to 150?
Anti-Fogging: The internal mask features a valve unit and sealing cover that provide additional anti-fog measures. The system is designed to guide air from the filter to the lenses before reaching the internal mask.
Internal Transit Frame:  Designed for maximum shape maintenance
Harness: The single-unit head harness uses a 6-point system to ensure customizability and secure wear. Rear-panel is outfitted with elastic straps, each with their own buckle

8-10-second donning period
Capable of 24-hour deployment
Works with standard NATO 40mm gas mask filter
Uniform standard Size 2 fits 95% of adults
Lightweight construction (440g)
Constructed of bromobutyl rubber materials; no second skin needed
Made in Sweden

Protection factor: >10,000
Protection against chemical warfare agents: >24 hour
Field of vision: 88%
Breathing resistance (without filter):
Inhalation at 25 P at 30 I/min, 75 Pa at 95 I/min
Exhalation: 130 Pa at 160 I/min
Carbon dioxide content: 0.65%

Bromobutyl rubber (frame), silicone rubber (inner mask and membranes), polysulfone (eyepieces), polypropylene (support frame), and polyester/polyamide/lycra (harness)

Mask only, no filter included