CM-7M® Military Gas Mask (CBRN)
The CM-7M® Military Gas Mask is a professional-grade CBRN respirator developed in cooperation with Czech Army specialists and issued as the OM-90 to the Czech Armed Forces. This is not a downgraded civilian variant. It is the same platform, manufactured in the same facility, to the same standards, and offered under a special government license.
Unlike many full-face respirators, the CM-7M® is purpose-built for use with rifles, red dots, magnified optics, and night-vision devices. Its tapered profile and recessed binocular lenses allow a natural cheek weld and proper eye relief, while maintaining strong chemical resistance and low breathing effort. Designed for military units, police squads, rescue teams, and preparedness-focused civilians, the CM-7M® balances real operational capability with long-term durability.
"A prudent person foresees danger ahead and takes precautions. The simpleton goes blindly on and suffers the consequences. - Proverbs 27:12"
Tapered facepiece enables proper cheek weld with long guns
Dual-lens visor improves depth perception with iron sights and optics
Low-profile cut integrates with ballistic helmets and ear protection
Bromobutyl rubber provides high resistance to CBRN agents
Dual NATO filter ports allow left
or right-side configuration
Integrated drinking system supports hydration in contaminated zones
Efficient internal airflow and sweat drainage for extended wear
Shared component ecosystem with other CM-series masks simplifies logistics
Military-issue design (OM-90 platform)
Tapered facepiece for improved cheek weld
Dual silicate glass lenses for optic compatibility
Dual 40 mm NATO (Rd 40 × 1/7”) filter ports
Integrated hydration system with canteen
EN 136 Class III and EN 148-1 compliant
Facepiece Material: Bromobutyl rubber, non-irritating
Inner Mask: Natural rubber, hypoallergenic
Head Harness: Five-point rubber-textile
Average Weight: 500 g
Color: Black
Available Sizes: 3 (Size 2 fits approximately 95% of users)
Lens Material: Silicate glass
Effective Field of Vision: 71.5%
Binocular Field of Vision: 34%
Filter Thread: Rd 40 × 1/7” (40 mm NATO standard)
Resistance to NBC Agent Penetration: >48 hours
Speech Intelligibility: ≥95%
Standards: EN 136:1998 Class III, EN 148-1
Operating Temperature: −30 °C to +70 °C
Liquid Intake Rate: 230 ml/min
Manufacturer: MIRA Safety
Size 1 (Small): Smaller faces, approx. ≤130 lb body weight
Size 2 (Medium): Fits ~95% of users
Size 3 (Large): Wide faces or users over ~250 lb
Shelf Life: 20 years from date of manufacture when stored properly
Store in a cool, dark, dust-free environment
Avoid sunlight, radiant heat, solvents, fuels, and ozone-producing equipment
Prevent deformation of rubber components during storage
What’s Included
- CM-7M® Military Gas Mask
- Integrated hydration system with canteen
WHY YOU’RE BUYING FROM STAY READY.
We aren’t the Amazon of survival. We’re a small, opinionated shop that carries gear we’d stake our own lives on — and we back every piece with real support.
Curated
Every brand we carry has been vetted in the field by our team. If it doesn’t pass our 30-day use test, we don’t stock it.
Authenticated
Factory-direct from authorized dealers. No grey-market, no refurb, no knockoffs. Your warranty is real.
Supported
Real humans on phone, text, and email — seven days a week. We carry this gear ourselves and we stand behind it.
American
HQ in California. Orders ship from our US warehouse. US-based customer care.
CBRN RESPIRATORY PROTECTION
Professional-grade protection without the gatekeeping. CBRN gas masks for civilians since 2018.
MIRA Safety was founded by Roman Zrazhevskiy and Tanya Mironova in 2018 — born out of Roman's own experiences with 9/11 and Hurricane Sandy and the realization that civilians had effectively no access to military-grade respiratory protection. Their flagship CM-6M gas mask launched in 2018 (and was later featured in Christopher Nolan's TENET). The company partners with European defense contractors to bring CBRN-rated masks, filters, and protective equipment to professionals, preppers, and families — including a full line of children's protective equipment. Their philosophy: "When crisis strikes, you can't rely on anyone but yourself."
- Founded in 2018 by Roman Zrazhevskiy and Tanya Mironova
- Built on Roman's personal experience with 9/11 and Hurricane Sandy
- CBRN gas masks, filters, and protective equipment
- Flagship CM-6M featured in Christopher Nolan's TENET (2020)
- Manufactured with European defense contractor partners
Answers, straight up.
Product-specific questions on the left. Shopping with SRO on the right. Both open-ended — hit us if we missed one.
How long does shipping take?
Most orders process within 1–3 business days from our warehouse. From there: 5–7 business days economy, 2–3 business days expedited, or overnight if you need it fast. Free economy shipping on orders over $150 (contiguous US). Alaska, Hawaii, and Pro Eagle / freight items are quoted at checkout. You’ll get a tracking number and link the moment your order ships.
What’s your return policy?
30 days from the day your order arrives. Gear has to come back unused, with all original tags, stickers, and packaging intact. For standard items we’ll send a prepaid return label and deduct return shipping from your refund. Oversized or freight returns are on you, unless the item showed up damaged, defective, or wrong — in which case we cover it.
Refunds hit your original payment method within 10 business days of approval.
What can’t I return?
Final-sale items, gift cards, food and drink products, personal-care items, anything customized or engraved, briefs (hygiene), and hazardous materials. If you’re not sure whether something qualifies, email us before you order — we’ll tell you straight.
Do you ship outside the contiguous US?
Yes. Alaska, Hawaii, and US territories ship on freight-quoted rates calculated after checkout. International orders are available worldwide at variable rates; duties and import fees are the customer’s responsibility. EU customers get a 14-day cancellation window per EU consumer law, on top of our standard return policy.
My package arrived damaged — what now?
Email info@stayreadyoutdoors.com within 7 days of delivery with your order number and clear photos of the damage (product + packaging). We’ll replace, refund, or ship a return label on us — no back-and-forth. Damaged, defective, or wrong-item claims never cost you shipping.
Can I talk to a human before buying?
Yes. Email info@stayreadyoutdoors.com — we answer every message ourselves, usually within a few hours during business days. We carry this gear, we use this gear, and we’d rather talk you out of a kit that doesn’t fit your mission than sell you the wrong one.
Do you offer a military/first-responder discount?
Yes. Active-duty and veteran military, police, fire, EMS, and medical first responders get 10% off every order. Verify through GovX at checkout — one-time, secure, and reusable across thousands of brands. Discount applies automatically once you’re verified.