Shop with Confidence
If it doesn’t fit, we will acquit.
Free exchanges & returns.
Free shipping for
all U.S. orders
Got a question before you order?
Call us at 972-532-7340
The NBC-77 SOF filter canister, in combination with a full-face mask, mouthpiece assembly, or PAPR, reliably protects air passages against a wide range of harmful and highly toxic substances including all known CBRN agents.
The filters are produced with standard round threads according to STANAG 4155 (EN 148- 1)- Rd 40x1/7". The filter components are made of hard plastic. This results in a very robust product that is extremely durable against shock and impact damage in operational use.
- Compatible with standard 40mm NATO threaded respirators, which are widely available.
- 20-year shelf life - save money long-term by not having to replace your filters every 5 years
- Used by military personnel, CBRN specialists, and special operations forces all over the world
- Filter all known CBRN agents, including radioactive iodine, rated for A2B2E2K2HgSXP3 D R.
- Certified by European agencies and has the “CE” symbol. Compliant under EN 14387:2004 + A1:2008
|Technical Data||Breathing Resistance in Pa Breathing Resistance in Pa|
|Diameter||110 mm||@ flow rate 30l/min. EN 1) NBC-77 SOF 260 <140||@ flow rate 95l/min. EN 1) NBC-77 SOF 980 <600|
|Weight||335 g ±5%|
|Storage time||20 years (factory sealed)|
|Type and Class Particle filter efficiency @ flow rate 95l/m||Particle filter efficiency @ flow rate 95l/m|
|A2 - organic gases and vapors||SX - CG, CK, PS||Sodium Chloride NaCl (S) Paraffin oil (L)||EN 99,95 99,95||NBC-77 SOF >99,999 >99,999|
|B2 - inorganic gases and vapors||P3 - particles|
|E2 - acid gases and vapors||D- dust|
|K2 - ammonia and amines||R- reusable|
|Hg - mercury vapors||REACTOR - radioactive iodine|
1) Standard EN 14387+A1
2) The filter was tested on dolomite dust clogging
3) Radioactive iodine and its organic compound - methyliodide¹³¹ acc. to standard DIN 58621
The filter canister in connection with a suitable respirator or PAPR provides protection against 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. 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.
|Testing Gas||Concentration of Testing Gas||Breakthrough Time in Minutes EN||NBC-77 SOF||DAC in Grams NBC-77 SOF|
|Hg||Mercury||Hg||-----||13 mg/m³||100 hours||>170 hours||>3900|
|REACTOR||Methyloidide₁₃₁||CH₃I||-||-||2 hours||>2 hours||-|
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.
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.
I work as a law enforcement officer in Southern California so being prepared is part of my job. I purchased a set of Mira NBC-77 SOF filters because it’s one of the only true CBRN filters available to the civilian market. They are rated for A2B2E2K2HgSXP3 D R, with a DIN rated 58621 Reactor element. The letters stand for the different classes of contaminants, and the numbers next to it show which concentration of these elements the filter can handle. I attached some pictures that help break this down. The D stands for dust (just means it will filter out dust), and the R stands for reusable. If the filter is used for mercury vapor filtration, it’s only meant to be used for a maximum of 50 hours. If any filter is used with highly toxic substances, it’s only meant for single use. DIN is a European rating agency that specifically tests the Reactor, which is meant to filter out radioactive iodine. I have not used these filters, and hope that they sit in my patrol car for the entire 20-year shelf life untouched. But, if they need to be deployed, I feel much better about having a product that covers everything as opposed to just a few different gases.
20 year expiration!!
You pay a little more for these gas mask filters, but they last a lot longer and are rated for CBRN protection. Standard filter cartridges last 6 years and cost an average of $55. Over the course of 20 years, I would have spent $150+ to keep them fresh and up to date