If you’re looking for a protective mask that mimics the type that our military uses, the Mira Safety CM-7M is it.
Mira Safety CM-7M Protective Gas Mask – Conclusion The CM-7M performed as intended and my breathing was unaffected by the pepper spray. After about 10 seconds the canister was emptied and the room was filled with pepper spray, but I couldn’t tell. It sealed perfectly, even though I had a few days’ growth of beard. There was no visible cloud, but we knew it was working because unmasked people outside of the tool shed began coughing and feeling the pepper spray after just a few seconds. I imagined in my head that it would be a visible cloud, reminiscent of the gas chamber from my Army days, but it wasn’t. I discharged the canister of pepper spray and it immediately began filling the room. We chose to test it in a tool shed that’s approximately 10’x10’.Īfter donning my CM-7M mask I stood in the center of the tool shed with the doors open (for those filming outside). The canister says that it can fill a 12’x12’ room in 10 seconds. It’s called a grenade because it’s designed to fill a room with pepper spray, as opposed to canisters designed to spray directly into an attacker’s face. We tested the Mira Safety CM-7M with a canister of Fox Labs Five Point Three pepper spray grenade. CM-7M Gas Mask Field Test and Performance It’s a bit more restrictive than a hat or a helmet. If you train your body under constrictive or restrictive conditions, you will perform better and longer under normal conditions.įirst-time users may also feel a bit uncomfortable with a device that fully covers their face. I imagine it’s similar to what asthma feels like.Īthletes sometimes use masks similar to these to aid in their training. The best way to describe it is that it feels like it takes more effort to draw air into your lungs. It is a restrictive feeling, although not so much that I ever feel short of breath or panicky. If you’ve never worn a protective mask before, it will take some getting used to how it feels to breathe wearing it.
After the cheek straps are completely loosened you should be able to lift the mask off of your face by grabbing the exhalation chamber. First, loosen the lowest straps first, the ones closest to your cheeks. Doffingĭoffing, or removing the mask is similar to donning it, but in reverse. If there is not a proper seal, you will hear air entering your mask, it will make a hissing sound. If your mask is properly sealed around your face, your hand will “suction cup” to the filter, like when you place your hand over a vacuum. Then, press your palm firmly over the opening of the filter. The exhaled air will go out of the filter. To clear any contaminated air out of your mask, exhale vigorously. Once you have your mask fitted properly, clear the mask. This is the old “clear and seal” that you may remember if you ever wore a mask in the service of your country. Once you have the straps tightened, move on to the mask tightening test. Then, adjust the straps so that the pad is centered on the crown of your head and begin tightening the straps from top to bottom on each side. Place your hands inside the straps and hold them apart, placing the mask over your head, like a shower cap. After the filter is secure, loosen the head straps. Next, screw the filter into the inhalation chamber. Particle Filter Efficiency Flow Rate 95 l/minįirst, remove the filter from its packaging and remove the tab. Type and Class A2 - Organic gasses and vaporsīreathing Resistance in Pa flow rate 30 flow rate 95 l/min
CM-7M Technical Data Weightīreathing resistance at 30 l/min air flow: The filtration specs listed are in reference to the filter. I will try to include all of the specs that Mira Safety sent out with the mask. The specifications of a protective mask can be confusing. We’ll talk more about the filter in the Specs section. With a shelf life like that, it’s easy to see how a prepper could buy one of these, throw it in their bug-out bag, and basically forget about it. It came vacuum sealed and says that it has a sealed shelf life of 20 years. The filter that came with my Mira Safety CM-7M mask is called the NBC-77 SOF, also made by Mira Safety. There is even a drinking tube and a compatible canteen included in the box. The overall shape is pretty much the same, with some minor cosmetic differences.
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