MIRA Safety CM-7M Military Gas Mask - CBRN Protection Military Special Forces, Police Squads, and Rescue Teams

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PLEASE NOTE: Due to a significant spike in demand, our lead times on all orders have been increased. There is currently a four-week lead time, and your order will be shipped in the sequence in which it was received. We appreciate your patience as we work through this. 


The CM-7M tactical gas mask is the ultimate chemical, biological, radiological, and nuclear (CBRN) defense system when used in conjunction with suitable filters or breathing apparatus. The military-grade technology used for this full-face respirator provides comprehensive protection against the full spectrum of CBRN agents and toxic industrial chemicals in the form of gases, vapors, and aerosols.

Key Benefits of the CM-7M Military-grade Gas Mask:

  • Outstanding resistance against all kinds of CBRN agents, industrial toxic gases, riot control gases, etc.
  • High user comfort for superior all-day protection
  • Easy donning and doffing
  • Low breathing resistance
  • Fits up to 2 NATO-standard 40 mm gas mask filters (widely available with a variety of protection levels)
  • Compatible with optical devices (night-vision goggles, etc.)
  • Allows for safe and easy drinking during use in a contaminated area
  • Comes with a pre-installed hydration system and canteen
  • Compatible with CamelBak water bladders with a Type A or M adapter (not included)
  • Sweat drainage through the exhalation chamber
  • Compatible with helmets and breathing apparatuses
  • High-quality speech diaphragm enables easy communication with or without communication devices.



    bromobutyl rubber, non-irritating natural rubber, non-irritating
    silicate glass polyoximethylen, polyamide
    PET five-point, rubber-textile
    Technical specifications
    500g black
    3 71.5%
    34% Rd 40x1/7"
    > 48 hours
    max. 20 Pa max. 50 Pa
    max. 60 Pa 95%
    230 ml/min - 30°C up to +70°C


    The CM-7M CBRN tactical gas mask was designed and developed in cooperation with Czech Army specialists and specifically developed for use with a wide array of optics for advanced tactical capability.

    The CM-7M hazmat mask meets the EN 136 (Class III) and EN 148-1 standards and is available in three sizes, providing a perfect fit for practically any user. A NATO-standard filter canister can be mounted on either (or both) side of the military mask to make it easier to aim a gun whether right- or left-handed.

    The material of the facepiece (bromobutyl rubber) on this NATO gas mask provides extraordinary protection against all known chemical warfare agents, along with biological, nuclear, radiological, and industrial chemical agents.

    This tactical gas mask is designed to withstand long-term use in any weather conditions. The inner mask features comfortable hypoallergenic construction that reduces the content of carbon dioxide in the mask and regulates the flow of inhaled air to prevent fogging for more comfortable all-day use.

    The inhalation chambers on this army gas mask are fitted with the Rd 40 x 1/7” thread in accordance with the EN 148-1 (NATO) standard. This ensures compatibility with the widest range of filters readily available on the market today.

    These military-grade gas masks are manufactured under the permanent supervision of a representative of the Czech Ministry of Defense and are trusted by military and police users in a wide variety of countries.

    The lenses of the CM-7M warfare mask are specifically crafted to ensure compatibility with all kinds of optical devices while providing a sufficient field of vision. The dual lens configuration provides superior depth perception when compared to a single panoramic faceplate, making it ideal for use with rifle iron sights or in combat.

    The CM-7M nuclear gas mask is equipped with a drinking system that enables safe drinking in contaminated areas.  The drinking system is also compatible with CamelBak hydration systems.

    Tactical Gas Mask Service Life

    The storage and service life of the CM-7M full-face respirator / tactical gas mask is 20 years from the date of production, provided that the recommended storage conditions are observed.


    Size No. Size in mm
    Size 1 5.19 – 5.51 inch (small)
    Size 2 5.51– 5.82 inch (medium) (universal most used)
    Size 3 5.82 – 6.14 inch (large)

    To size yourself, it would require a device called a faciometer which is not very common. 

    Size 2 (medium) fits 95% of the population, so if you're an average size person, we would suggest size 2. For smaller than average people who weigh 130lb or less, with thin faces, we would suggest size 1 (small). For users over 250 lbs and wide faces, go with large.

    We have a free exchange program in case it doesn't fit, so rest assured that no matter what we'll make sure you get the right size. You will know the size is right if you do a negative pressure test (blocking the inhalation valve and taking a deep breath), and the mask seals tightly to your face. 

    Please Note: Filters are NOT included. Please make sure to choose the appropriate size on the drop-down menu. 


    Ask a Question
    • Would it be possible to get sunlight lenses or outserts for the CM-7M?

      At this time, we do not carry any outserts or lens covers for the CM-7M, and we do not know of any aftermarket alternatives.

    • Can the CM-7M size small fit a 10-year-old face?

      In most cases, no it cannot. The size small is made for small adults with narrower face profiles, 5'3 or shorter, weighing in at 130lb or less. If the small CM-7M mask doesn't fit, the only other alternative from MIRA Safety is the CM-2M size 2. 

    • How would you know if a gas mask fits your face?

      You would have to perform a negative pressure test. To do this, you would put the mask on your face, take a deep breath out, cover the inhalation valve (make sure the opposite side has the 40mm cap in place), and take a deep breath. If the mask sucks tight to your face without leaking air, you know that this mask fits.

    • What are the major differences between the CM-6M and CM-7M?

      The CM-7M is specially designed for use with optics and operating a rifle. Features include a dual recessed visor system for eye relief, along with a contour above the inhalation valve for a closer cheek weld. These features come at the expense of a wide field of view, and this is where the CM-6M shines. Think of the CM-7M and CM-6M as different tools for different jobs. 

    • How do I determine the correct size for the CM-7M?

      Sizing yourself would require a device called a faciometer, which is not very common. Size 2 (medium) fits 95% of the population, so if you're an average size person, we would suggest size 2. For smaller than average people who weigh 130lb or less, with thin faces, we would suggest size 1 (small). For users over 250 lbs and wide faces, go with large. We have a free exchange program in case it doesn't fit, so rest assured we'll make sure you get the right size.

    • Would this mask protect me from the Coronavirus?

      Coupled with the appropriate filter, other personal protective equipment to cover your skin, and proper decontamination measures, yes it will protect form coronavirus.

    • Do the CM-7M lenses have some sort of Ballistic protection capability?

      They are made from impact-resistant tempered silicate glass, as mandated by the Czech special forces for optical clarity. However, they do not offer ballistic protection.

    • Are there any outserts available for the CM-7M such as a UV filter (sunglasses)?

      We are not aware of any compatible outsets, but there may be aftermarket options.

    • I purchased a CM-7M mask not to long ago, (I absolutely love it) and I wanted to make sure I was storing it right. Is storing it in a waterproof hard case with silica gel packets a good way to store it or should I store it differently?

      Glad you love it! That is an excellent way to store it, make sure it's in a cool, dark place, without high temperature and humidity changes. Also, make sure to store it with the black plastic insert installed, as this helps maintain the shape of the mask when not in use.

    • On the CM-7M, can it accept prescription inserts or only the CM-M6 is capable of doing so?

      At this time, we do not have a spectacle kit available for the CM-7M, and we are unsure of which kit fits with the mask. I would suggest reaching out to Safe Vision, a 3rd arty provider, as they have many kits available. The CM-6M is compatible with the 3M Safet 6878 Spectacle Kit, which is available across many online shops.


    Customer Reviews
    5 Based on 11 Reviews
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    Filter Reviews:
    C. Sok
    United States United States
    Best Customer Service

    One of the best customer service experiences I ever had. Brad took his time out of the weekend to answer any question(s) that I had for him and ensured that I was well taken care of. I have no doubt that their products emulate the quality of their customer service.

    Das S.
    United States United States
    Best Pro Mask I've Encountered

    I am a big fan of this pro mask. It is lightweight, very easy to put on and seal (Gas, Gas, Gas! drills), and it is very comfortable to wear. Shouldering a rifle in this pro mask is very doable, and does not hinder your shot, aside from adjusting the slight lift of your cheek on the stock. I have a size 8 head, which is pretty big in America, and was fitted for a large pro mask while in the Army. The CM-7M (size L) is a perfect fit. I recommend this mask to anyone looking for a quality, and reliable pro mask that you can rely on when SHTF. -Das

    Maurice B.
    United States United States
    CBRN Mask

    Fits well, works as advertised. Didn't realize filter needed to be ordered separately. I guess I'll order that next.

    Jai C.
    Australia Australia
    A very well made quality Gas Mask

    My experience with Gasmasks is civilian use, I have used the Avon S10 & GP5 a bit brought from surplus. The pros of the MIRA Safety CM-7M are: - Has a nice look, similar to the avon s10. - The mesh head harness is an absolute delight to use, very easy to put the mask on & very easy to adjust tightness & loosen when taking off mask. - Does not seem to have any fogging on lens at all while breathing, other masks I've worn usually fog a little each time I exhale out. - Gave a good fit around face & jaw area, did not feel like it was really irritating and compressing the jaw area while speaking. Seems the sizing is broad and flexible, unlike the S10 which is more narrow. But I suspect the next size up L might be better, but it takes alot of wearing to really know if a mask fits, cannot be done with just a few uses. I have no doubt this is a serious full on military gasmask and can be used in combat with good eyesight. I have worn this a handful of times for up to an hour even when it gets hot and no major issues. Cons: - I did find after a while it presses up against my nose a little if bottom two straps are nice & tight, you can forcefully move the mask a bit to help a small amount. If you have any nostril hair it can get annoying. Maybe the L size would be better. Overall it's good to be able to get a real gasmask for civilians in brand new condition.

    United States United States
    Great Service

    Overall impressed most with the responsiveness of the staff to questions and seeing the sale through to completion upon delivery of the product-