The Israeli 4A1 is a genuine full-face CBRN gas mask developed for Israeli civilian defense. It provides reliable protection against chemical, biological, radiological, and nuclear (CBRN) airborne threats. It comes complete with a sealed 40mm NATO NBC filter and a hydration tube straw attachment, ready to use out of the box.
Trusted by thousands of buyers worldwide with 500+ verified reviews, this is authentic Israeli surplus equipment - not a replica, not a training prop. The 4A1 is the same mask distributed to Israeli civilians for national emergency preparedness.
40mm NATO Thread (EN 148-1 / Rd40 / STANAG 4155) - Compatible with all standard 40mm NATO filters for easy replacement
Hydration Tube Straw - Attaches to the built-in drinking port so you stay hydrated during extended wear without breaking the seal
Adjustable Elastic Straps - Quick-release buckles for a secure, customizable fit
Durable Rubber Construction - Flexible, long-lasting material with a tight face seal
Authentic Israeli Surplus - 100% original, not a reproduction. Model: 4A1 Civilian
CBRN Emergency Preparedness - Adults, Preppers, and Civil Defense
Adults and older teenagers ages 15 and up
Emergency preparedness and family evacuation planning
Civil defense readiness
Wildfire smoke and poor air quality events
Chemical or industrial hazard protection
Collectors and preparedness enthusiasts
Have a beard? The 4A1 requires a clean face seal and will not seal properly over facial hair. For bearded users, we recommend the Israeli Sapphire CBRN PAPR Hood for Bearded Men - a powered hood respirator that provides full CBRN protection without requiring a face seal.
Upgrade to Powered Airflow - Add the ONYX 45 PAPR Blower
Want easier breathing during extended wear? The 4A1 is fully compatible with the ONYX 45 PAPR blower, which delivers 45 LPM of powered, filtered air directly into the mask, eliminating breathing resistance and especially recommended for older adults or anyone with reduced lung capacity. See our complete powered kit for a ready-to-use bundle.
Stock Up on Replacement NBC Filters
Keep a spare sealed filter in your kit. Browse our full range of 40mm NATO NBC filters - available in single, 2-pack, 3-pack, and 4-pack options.
Comes ready to use with a factory-sealed, CBRN-rated 40mm NATO filter. Install the included filter for certified NBC protection right out of the box.
CBRN / NBC protection
Protects against chemical, biological threats
CBRN / NBC protection
Protects against chemical, biological threats
CBRN / NBC protection
Protects against chemical, biological threats
Adjustable Straps
Large rounded visor for clear visibility
40mm NATO compatibility
Fits standard 40mm NATO filters
40mm NATO compatibility
Fits standard 40mm NATO filters
Hydration drinking port
Drink without removing the mask
Hydration drinking port
Drink without removing the mask
Adjustable Straps for secure fit
Built-in drinking port accepts the supplied hydration straw so you can drink without removing the mask. Large rounded visor provides wide, unobstructed visibility.
Frequently Asked Questions
The kit includes the Israeli 4A1, black diamond, full-face CBRN gas mask (civilian model, black rubber), one factory-sealed 40mm NATO NBC filter, and a hydration drinking tube straw that attaches to the mask's built-in drinking port - everything you need for immediate use, right out of the box.
Yes. The 4A1 is a genuine Israeli civilian defense gas mask rated for CBRN (Chemical, Biological, Radiological, and Nuclear) airborne threats. It is not a replica or training prop - it is authentic Israeli surplus equipment, the same model distributed to Israeli civilians for national emergency preparedness.
The kit comes with a factory-sealed 40mm NATO NBC filter (EN 148-1 / Rd40 / STANAG 4155 thread standard). When the filter reaches the end of its service life, it can be replaced with any standard 40mm NATO-compatible CBRN filter available on the market - this is the most widely used filter thread in the world. We also sell 40mm NATO NBC filter bundles separately, so you can stock up for your entire household or emergency-preparedness kit.
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