![]() It's important to note that these color-coding systems are primarily used for easy identification by industrial workers, so you won't see them on all filters (they're noticeably absent on the NBC-77 SOF filter, for example, which is all grey). More on that in Filter Classification below. Inside, each filter has a unique combination of chemical and mechanical media to filter out particulates and provide the user with breathable air even in extreme environments.ĭue to the complicated nature of how these filters are built, there's no "one size fits all" solution, so filters are classified based on the protection they provide-typically designated by a series of numbers and (sometimes) color-coded bands (per standard EN 14387+A1). Many filters have the same round shape and size that you probably already know. This can make logistics straightforward, as seen in the Storage & Shelf Life section below. Depending on the specific filter, they can provide up to 40 hours of practical protection from airborne contaminants and toxins.Īny worthwhile gas mask filter will have these details in the included documentation. Gas mask filters are easy to carry, use and store, with a shelf life that can stretch into decades. Fortunately, it couldn't be any easier to put one to use. To produce a modern gas mask filter takes remarkable skill and expertise. Special filters - like most CBRN filters on the market today, protection is even higher, with safeguards against organic substances with low boiling points, including mercury, COx, NOx, and radioactive metal iodide. On the other hand, modern gas mask filters are indeed a technological marvel. ![]() The history of gas masks and how gas mask filters became practically universal is something we've already covered in our Gas Mask Buyer's Guide, so we won't delve into that here. We've assembled all the research you need to make an informed decision and give your family the protection they might need. So, we will look at everything you need to know about gas mask filters: from their practical function and specifications to the logistics of storing them and, should the need arise, putting them to life-saving use. That mistake can cost you time and money…or something even more critical. These complicated factors are often overlooked by new and sometimes even experienced buyers. The craftsmanship of their construction matters just as much as the science behind their effectiveness.Ĭreating a working gas mask filter takes specialized knowledge of impregnating carbon with a key balance of metal salts and then treating the blend with chemicals to pass strict testing requirements. For example- a single type of filter can protect you from all of the contamination from a nuclear meltdown for up to 24 hours, while another filter could help you safely navigate the smoky environment of a house fire to reach safety.īut each gas mask filter has its limitations…Įach filter has a shelf life, classification, specs, and price.
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