IMPORTANT NOTE: We've received an overwhelming amount of questions surrounding the train derailment and spill; and the effectiveness of our products regarding protecting yourself and your family. The CEO published a letter to all subscribers on 2/14 explaining the NBC-77 SOF filter and its effectiveness in capturing those threats. Click here to see the letter.
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The NBC-77 SOF 40mm gas mask 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.
| 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 |
| Height | 85 mm | ||
| 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 | |||
Note:
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 | |||
|---|---|---|---|---|---|---|---|
| ppm | mg/I | ||||||
| A2 | Cyclohexane | C₆H₁₂ | 5000 | 17.5 | 35 | 39 | 20.475 |
| B2 | Chlorine | Cl₂ | 5000 | 15 | 20 | 45 | 20.250 |
| Hydrogen Sulphide | H₂S | 5000 | 7.1 | 40 | >80 | >17.400 | |
| Hydrogen Cyanide | HCN | 5000 | 5.6 | 25 | 50 | 8.400 | |
| E2 | Sulphur Dioxide | SO₂ | 5000 | 13.3 | 20 | 25 | 9.975 |
| K2 | Ammonia | NH₃ | 5000 | 3.5 | 40 | 50 | 5.250 |
| Hg | Mercury | Hg | ----- | 13 mg/m³ | 100 hours | >170 hours | >3.900 |
| SX | Cyanogen chloride | CICN | 2500 | 6.28 | 20 | 25 | 4.710 |
| Chloropicrin | CCI₃NO₃ | 5000 | 33.55 | 20 | 44 | 44.286 | |
| Phosgene | COCl₃ | 5000 | 20.24 | 20 | >77 | >47.058 | |
| REACTOR | Methyloidide₁₃₁ | CH₃I | - | - | 2 hours | >2 hours | - |
Breakthrough time of a gas mask 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.
Each NBC-77 SOF gas mask filter is sealed in a plastic bag 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, gas mask filters are considered 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.
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