Mira Safety NBC-77 40mm Nato Gas Mask Filter

NBC 77 SOF CBRN 40mm Gas Mask Filter

The NBC 77 SOF is a professional grade CBRN gas mask filter designed for serious preparedness, emergency response, and high risk environments. This filter delivers broad spectrum respiratory protection against chemical, biological, radiological, and nuclear threats when used with a compatible full face gas mask or powered respirator.

Built for long term readiness, this is not a disposable or light duty cartridge. It is engineered for real world scenarios where reliable air filtration matters most.

CBRN Protection You Can Rely On

This filter is designed to protect against a wide range of airborne hazards including chemical warfare agents, toxic industrial chemicals, radioactive particles, and biological contaminants. It combines advanced gas adsorption with extremely high efficiency particulate filtration to protect your lungs in dangerous environments.

High Efficiency Filtration

The NBC 77 SOF meets strict European filtration standards and is rated A2B2E2K2HgSXP3 D R REACTOR. This means it provides protection against organic gases and vapors, inorganic gases, acid gases, ammonia, mercury vapors, radioactive iodine, and solid and liquid particulates. Particulate filtration efficiency exceeds 99.999 percent.

Universal 40mm NATO Compatibility

This filter uses the standard 40mm NATO threaded interface, making it compatible with most modern gas masks and powered air purifying respirators on the market. It integrates easily into existing protective setups without the need for adapters.

Long Term Shelf Life

Each filter is factory sealed and rated for up to a 20 year shelf life when stored properly. This makes it an excellent choice for long term storage, emergency kits, bug out bags, and preparedness stockpiles.

Durable and Field Ready

The hard polymer housing is built to withstand impacts, rough handling, and demanding conditions. Whether stored for emergencies or deployed in active use, the filter is designed to hold up when it counts.

Protection Coverage Includes

Chemical warfare agents and nerve agents
Toxic industrial gases and vapors
Acid gases and organic solvents
Mercury and other heavy metal vapors
Radioactive iodine and radioactive particulates
Smoke, dust, biological particles, and airborne contaminants

Protection begins once the filter is properly installed on a compatible gas mask or respirator.

Technical Specifications

Thread standard 40mm NATO
Filter classification A2B2E2K2HgSXP3 D R REACTOR
Shelf life up to 20 years when sealed
Approximate weight 335 grams
Approximate diameter 110 millimeters

Why This Filter Belongs in Your Kit

The NBC 77 SOF is built for individuals who take preparedness seriously. Its long shelf life, broad threat coverage, and universal compatibility make it a core component of any serious respiratory protection setup. Whether you are planning for emergencies, industrial hazards, or worst case scenarios, this filter provides dependable protection when clean air is not guaranteed.