Cart
0
CBRN Gas Mask Filter NBC-77 SOF 40mm Thread - 20 Year Shelf Life
$79.99
Frequently Bought Together
Customer Reviews
Based on 16 reviews
75%
(12)
25%
(4)
0%
(0)
0%
(0)
0%
(0)
T
I liked the small size! And easy attachment to gas masks and such.
B
I was invited to watch a group of Soldiers go thru an NBC chamber. The chamber is used to get Soldiers familiar with and grow trust in their Protective (gas) mask.I was allowed to bring my own mask. I bought several of these MIRA CBRN cannisters just in case, and finally had a chance to test them.I was in the chamber with CS gas for an hour and 15 minutes. While my exposed skin slightly burned from the CS, my face that was inside the mask was unaffected and my breathing was normal. I couldn't even smell it.The room was filled with smoke from the fire prior to the CS addition, and the mask easily filtered that as well.While my voice was somewhat muffled, I was understood by everybody when I talked.I had grown trust in both the mask and, more importantly, the cannister to do their jobs.I gave it 4 stars because I did have an issue with clearing the mask at the end when I broke the seal to test the ease of clearing it. The inhalation vent on the cannister is really wide, and to clear your mask you would put the palm of your hand over that and exhale to clear the gasses from the mask without it going through cannister. If you have small hands, this will be difficult.While this seems mundane, if you put your mask on after the gasses are in the air, you would need to clear your mask anyway.Overall, I will be buying more MIRA CBRN canisters in the future. I have them for my family and trust they will work in worse case scenariosYou just can't get much better of a test then this.
R
Excellent shelf life and packaging designed for long term storage.
K
I trust these filter cartridges and from reviews so do a lot of other people . I am currently picking up a few more to fill my needs.and I recommend you think about it too. Proper and quality of work is evident in the construction of these and when your life is on the line spend the extra money if you can! Thanks again for quality products.
J
If you have a gas mask then you should have a couple of these. 20 year shelf life, this filter is the real deal that will protect you from radiation, chemical, or biological weapons. The only thing it won't protect you from is a saturated atmosphere where there's no oxygen.
FAQs
Have a question ? We are here to help.
What contaminants does the NBC-77 SOF filter protect against?
The NBC-77 SOF filter is CBRN-rated, offering protection against chemical warfare agents (CWA), biological threats, radioactive particles, and toxic industrial chemicals (TICs).
Is this filter compatible with my gas mask?
Yes, it features a universal 40mm NATO threading (EN 148-1), making it compatible with most professional-grade gas masks used by military, law enforcement, and emergency responders.
How long does the NBC-77 SOF filter last during use?
Under standard testing conditions, the filter provides over 6 hours of protection against blister agents. The actual duration depends on contaminant concentration, environmental conditions, and breathing rate.
What is the shelf life of the NBC-77 SOF filter?
When stored correctly, the sealed filter has a 20-year shelf life, ensuring long-term reliability. The expiration date is marked on the filter label and should be checked before use.
Can I reuse the filter after exposure to contaminants?
No, once the filter has been used and exposed to contaminated air, it cannot be cleaned, regenerated, or reused. It should be discarded after significant exposure or when breathing resistance increases.
How should I store my NBC-77 SOF filter for maximum shelf life?
Store unopened filters in a cool, dry place at:
- Ideal Temperature Range: -5°C to +30°C (23°F to 86°F)
- Relative Humidity: Below 80%Sealed filters can also tolerate -30°C to +50°C (-22°F to 122°F) with RH below 95%. Keep filters away from direct sunlight, chemicals, and moisture.
Does the NBC-77 SOF filter provide oxygen?
No, this is a filter-only system and does not supply oxygen. It should not be used in low-oxygen environments such as confined spaces without proper ventilation.
What certifications does this filter have?
The NBC-77 SOF filter meets EN 14387:2004 + A1:2008 European safety standards and other military-grade protection requirements.
When should I replace my filter?
Replace your filter if:
- It has reached its expiration date.
- You experience increased breathing resistance.
- The filter has been exposed to high concentrations of hazardous substances.
Can this filter protect against tear gas?
Yes, the NBC-77 SOF filter provides effective protection against riot control agents like CS (tear gas), CN gas, and OC (pepper spray).
Is this filter suitable for nuclear fallout protection?
Yes, the NBC-77 SOF filter is designed to block radioactive particles and airborne nuclear contaminants. However, it does not protect against radiation exposure from direct contact, ingestion, or gamma radiation.
Can I use this filter for industrial or laboratory work?
Yes, it is effective against toxic industrial chemicals (TICs) and is used by HAZMAT teams, laboratory personnel, and emergency responders for hazardous material protection.
How should I dispose of a used NBC-77 SOF filter?
Used filters are classified as special refuse and must be disposed of according to local hazardous waste regulations. Never attempt to clean the filter with compressed air or water.
Does the NBC-77 SOF filter contain activated carbon?
Yes, it features high-efficiency activated carbon and HEPA filtration media, ensuring maximum adsorption of harmful gases and particles.
Can I travel with this filter on an airplane?
Yes, unopened filters can usually be transported in checked or carry-on luggage, but airline and country-specific regulations vary. Always check with local authorities before traveling.