Transform your gas mask into a reliable, fully functioning multi-use smoke hood with these VK-450 filters.ĭesigned to overcome smoke & particulates (along with high concentrations of carbon monoxide), these advanced filters provide crucial hours of protection and clean air from some of the most common disasters faced by US citizens. #1: MIRA Safety VK-450 Smoke / Carbon Monoxide Filter Cartridges Protection during structure or wildfires. The media inside the filter must remain isolated from the environment, or it may absorb particles and contaminants in the air over time, diminishing its effectiveness.īTW If you buy anything from the links we provide on this page we might get a small percentage of the sale.
When shopping for filters, never buy one that’s been unsealed. Most provide a shelf life of five to ten years, though high-end models can last for up to 25 years or more (with proper storage).
Shelf LifeĪll gas mask filters have a shelf life. Other threads will usually be specific to a corresponding respirator or mask model (like 40mm Soviet filters, which may use left-hand threads). The most common threading you’ll find is the 40mm NATO Standard (Rd 40 x 1/7”), and this is typical for most filters on the market. There is some standardization in the threads and fittings used to pair filters with their respirators and gas masks. A filter rated with a “CBA-RCA” rating means it protects against chemical, biological, and riot-control agents, but not nuclear. For example, a filter described with an “NBC” rating means it protects against nuclear, biological, and chemical agents. Other acronyms will indicate what kinds of agents your filter will block.
NBC GAS MASK FILTERS USA CODE
Speaking of numbers, the “2” or “3” present next to each letter code indicates what class of filtration is provided: Reference the chart above to follow along: This code means the filter provides protection against gases and vapors with a boiling point greater than 65 degrees (C), inorganic gases and vapors, sulphur dioxide and hydrogen chloride, ammonia and organic ammonia derivatives, and radioactive particles. If we take the Mestel 40mm Filter from the list below, we find its filter ratings stamped on the side: “A2B2E2K2P3”. Depending on what situation you’re prepping for, you’ll need to review the alphanumeric and color-coded ratings provided by the filter in question: Gas mask filters are rated for protection against different particles and contaminants. In an era of ever-increasing social strife, a gas mask can protect you from tear gas and pepper spray during riots and crowd control incidents.īut your mask is only as good as the filters you choose, so we’re going to cover the best 40mm gas mask filters - must have items for anyone serious about prepping.įilter Factors to Consider Color Codes and Ratings Explained As we recently covered in our Ultimate Gas Mask Guide, protective filtration masks can be life-savers in events like building fires and wildfires, and when dealing with contamination from natural and man-made disasters like earthquakes, volcanoes, or a nuclear reactor incident. Gas masks and respirators aren’t just generic preparation investments.
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