Depending on the chemical agent, a filter may endure for up to 20 hours. In a biological or chemical emergency, the typical combination gas mask filter will last 8 hours. The filter’s purpose is to remove contaminants from the air, such as dust and infectious spores, by chemically reacting with certain gaseous compounds or aerosolized harmful liquids. CBRN filters on respirators are usually larger than NBC filters. Respirators that filter air to remove chemical, biological, radiological, and nuclear (CBRN) toxins are called air-purifying respirators (APRs). While they are both effective at preventing harm from dangerous chemicals and particles, they each work differently and are used in different situations. Gas mask not included.CBRN and NBC filters are designed to protect the wearer from different types of airborne threats.
#Nbc gas mask filters usa pdf#
benzene, toluene, vinyl chloride, fluorine, hydrogen fluoride, sulphur oxides, chloroacetic acid, aldehydes, mixtures of inorganic acids, and organic substances, mercury vapors, radioactive iodine, organic compounds of iodine (Iodomethane, 129, 131), radioactive particles, etc.įor a complete list of technical specifications, certifications, and usage lifetime, please download the linked PDF brochure: NBC-77-SOF-Brochure-Compressed-WF
A partial list of harmful substances includes: solid and liquid particles, pepper spray (OC), smoke-producing substances, radioactive particles, bacteria and rickettsia, fungi, toxins, viruses, riot control agents (lachrymators, sternutators, vomiting agents), blister agents (vesicants), choking agents, blood agents, nerve agents, incapacitants, herbicides, pesticides, and TIC, such as bromoacetone, CS, CR, CN, CNC, CNS, CA substances, organic compounds of arsenic – diphenyldichlorarsine – CLARK I (DA), diphenylcyanoarsine – CLARK II (DC), adamsite (DM), diphenyldichlorarsine (DA), ethyldichlorarsine (ED), methyldichlorarsine (MD), mustard gas (H), sulphur mustard gas (HD), T-mustard gas, Q-mustard gas, nitrogen mustard gases (HN1, HN2, HN3), lewisite (L), mixed mustard gas (H-L), phosgene oxime (CX), phosgene (CG), diphosgene(DP), chloropicrin (PS), hydrogen cyanide (AC), cyanogen chloride (CK), arsine (SA), G-agents: sarin (GB), cyclosarin (GF), soman (GD), tabun (GA), IVA (GV), V-agents: VX, VR, VE, VG (amiton), VM and toxic industrial chemicals such as: fumes of organic or inorganic acids, hydroxides, organic solvents with a boiling point above 65° C, ammonia, amines, inorganic and acid gases, agricultural chemical combustion gases, other toxic substances, e.g. In conjunction with compliant masks or respirators, the NBC-77 SOF filter are certified to protect against a wide range of harmful and toxic substances including all known CBRN agents. They have a shelf-life of up to 20 years when kept in their original sealed condition. This allows them to be used with other compatible full-faced masks, mouthpiece assemblies, or PAPR. Specifically, they use standard round threads according to STANAG 4155 (EN 148- 1) – Rd 40×1/7″ or GOST 8762-75 (40x4mm).
The MIRA Safety CBRN NBC-77 filters fit NATO-standard 40mm filter threads and are compatible with both the CM-7M and CM-6M gas masks found on our website.
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