Mira Safety CBRN Gas Mask Filter NBC77 40mm Thread Canister
2 hours >2 hours -
Lifetime
Breakthrough time of a filter is tested according to EN 14387 A1 at humidity 70% and flow rate 30 l/min, which is equivalent to the volume of air per minute used by an average person carrying out medium heavy work. The approximate lifetime (usage time) of a filter may, under normal conditions, calculated by comparing the concentration at the workplace and the minimum Dynamic Adsorption Capacity (DAC) for the filter. Storage and Maintenance
The filters are sealed in plastic bags by the manufacturer. Store the filters unopened in a clean place at even temperature, most appropriate at -5 to 30°C and relative humidity below 80%. Sealed filters tolerate also conditions of -30 to 50°C and RH below 95%. The storage period (month and year) for filters is marked on the filter label. Do not try to regenerate the filters. Never clean the filters with compressed air or compressed water. Disposal
After use, the filters are special refuse. Make sure that they are disposed of according to the filtered substance (gases or particles) in accordance with current waste treatment regulations. If the product is to be disposed of, it should be dismantled from the respirator and disposed of as solid waste. Please see local authority regulations for disposal advice and locations.
to download the Brochure Questions and Answers
Q: I am aware that a P3 filter is required to block the coronavirus. Which one of your filters is P3?
A: MIRA Safety filters (NBC-77 SOF, VK-450, DOTpro 320) are classified as "combined filters" and contain a P3 filter along with activated carbon. For those that don't know what P3 means, it is a rating for a particle filter that blocks 99.9999% of particulates. As viruses travel in liquid aerosols and particulates, this filter (when coupled with a full face respirator) would prevent the coronavirus from entering your breathing passages and eyes.
Q: How long does a filter last once it's opened?
A: Filter use time depends on a few factors, including atmospheric conditions, contaminant type, concentration, along with your breathing rate. As a general rule of thumb, we would suggest having two filters per person per day for emergency evacuation purposes. If you'd like specific data on use time, you can look at the brochure that goes into breakthrough times along with the application.
Q: Would this be compatible with the North by Honeywell Small Elastomer Full Face 5400 Series Dual Cartridge Facepiece?
A: For viral filtration, you would need a P3 particle filter (all of our filters have a P3 built-in). As all of our filters are threaded for 40mm NATO, they will all fit the MSA Millenim mask.
Q: What level filter will protect me from the Coronavirus and will this filter fit the MSA millennium gas mask?
A: For viral filtration, you would need a P3 particle filter (all of our filters have a P3 built-in). As all of our filters are threaded for 40mm NATO, they will all fit the MSA Millenim mask.
Q: Does this filter fit the Polish MC-1 gas mask?
A: Yes, it does, so long as it's in 40mm NATO configuration. As this is an old mask it might be threaded in 40mm Soviet GOST. Make sure to double-check before making a purchase.
Q: Will these filters work with an Avon C50 to provide proper CBRN threat protection?
A: Yes, they will, as both are threaded for 40mm NATO.
Q: Will these filters fit on Soviet GP5 gas masks?
A: No, they will not, as they are threaded for 40mm NATO, and the GP5 is threaded for old-style 40mm GOST.
Q: Will these filters fit Israeli gas masks?
A: Yes, they will, as both are 40mm NATO threaded.
Q: How to properly clean the mask? How to properly dispose of a used filter? For both, in a case where you may fear you were in a contaminated area.
A: There are many cleaning products on the market for gas masks, and each is created for different purposes. As decontamination is a field of study on its own, we would suggest doing independent research and training before purchasing cleaning products. For viral threats, we have heard that Allegro 5003-U is a good product from industry experts. We do not sell it on our website, but you can find it in shops across the web. Filter disposal would depend on local laws for toxic waste disposal. Please check with local authorities as laws differ from county to county, state to state, and country to country.
Q: Why are these masks not NIOSH approved? Is it primarily because of geographical usage?
A: Precisely. Traditionally, these masks were used by professionals in the EU, the middle east, along with eastern-European counties. Both the CM-6M and CM-7M are EN 136 CL 3 (special purpos