---
product_id: 217803422
title: "NBC-77 SOF - Single 40mm Gas Mask Filter - Special Combined CBRN Respirator Filters - NATO Standard Size (40mm x 1/7\") - Canister Filter Fits CBRN Gas Masks - 20 Year Shelf Life"
brand: "mira safety"
price: "$291.21"
currency: USD
in_stock: true
reviews_count: 8
category: "Mira Safety"
url: https://www.desertcart.ec/products/217803422-nbc-77-sof-single-40mm-gas-mask-filter-special-combined
store_origin: EC
region: Ecuador
---

# NATO standard 40mm x 1/7" threading A2B2E2K2HgSXP3DR multi-threat rating 20-year shelf life NBC-77 SOF - Single 40mm Gas Mask Filter - Special Combined CBRN Respirator Filters - NATO Standard Size (40mm x 1/7") - Canister Filter Fits CBRN Gas Masks - 20 Year Shelf Life

**Brand:** mira safety
**Price:** $291.21
**Availability:** ✅ In Stock

## Summary

> 🛡️ Stay Ready, Stay Protected—Because Your Safety Can't Wait

## Quick Answers

- **What is this?** NBC-77 SOF - Single 40mm Gas Mask Filter - Special Combined CBRN Respirator Filters - NATO Standard Size (40mm x 1/7") - Canister Filter Fits CBRN Gas Masks - 20 Year Shelf Life by mira safety
- **How much does it cost?** $291.21 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/217803422-nbc-77-sof-single-40mm-gas-mask-filter-special-combined)

## Best For

- mira safety enthusiasts

## Why This Product

- Trusted mira safety brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rugged Durability:** Shock-resistant, impact-proof canister built to withstand the harshest environments and emergencies.
- • **Unmatched Longevity:** Store with confidence—20 years of guaranteed protection ready when you need it.
- • **Military-Grade Defense:** Advanced A2B2E2K2HgSXP3DR filter technology shields you from chemical, biological, radiological, and nuclear threats.
- • **Seamless Compatibility:** Fits all NATO-standard 40mm gas masks for effortless integration into your existing gear.
- • **Trusted by Professionals:** Preferred by elite military operators worldwide—engineered for peak performance on and off the battlefield.

## Overview

The MIRA Safety NBC-77 SOF is a premium 40mm NATO-standard CBRN gas mask filter featuring a multi-threat A2B2E2K2HgSXP3DR rating. Designed for superior protection against chemical, biological, radiological, and nuclear hazards, it boasts a robust plastic canister with shock resistance and an industry-leading 20-year shelf life. Trusted globally by military professionals, this filter seamlessly fits full-face masks and PAPRs, making it an essential component for serious preparedness and professional-grade respiratory defense.

## Description

MIRA Safety - NBC-77 SOF - Single 40mm Gas Mask Filter - Special Combined CBRN Respirator Filters - NATO Standard Size (40mm x 1/7") - Canister Filter Fits CBRN Gas Masks - 20 Year Shelf Life: desertcart.com: Tools & Home Improvement

Review: Excelente calidad y atención, lo mejor!
Review: Legit - Came in OEM packaging, official MIRA product. Hopefully I will never have to use it.

## Features

- ULTIMATE: Maximize your protection. The NBC-77 SOF is a specialized 40mm gas mask CBRN filter tested for superior safety against a wide range of harmful substances, including CBRN agents, with durability and longevity that's tough to beat. These high-performance combined filters for gasmasks offer the ultimate level of protection for you, your family, and your organization.
- ADVANCED: A military-grade CBRN filter. The NBC-77 SOF filter canister, combined with a full-face mask, mouthpiece assembly, or powered air-purifying respirators (PAPR), helps protect the user from known CBRN threats. This advanced 40mm filter cartridge features an A2B2E2K2HgSXP3DR reactor rated for radioactive iodine, setting it apart from other NBC/CBRN respirator filters.
- UNIVERSAL: NATO standard size. Engineered with a 40mm x 1/7" threading, the NBC-77 SOF multi-gas filter is compatible with your existing full-face CBRN respirator mask. These premium threaded CBRN filters for gas masks are built to comply with a wide variety of stringent international standards, including EN 14387:2004 + A1:2008, EU Health and Safety requirements.
- CONVENIENT: Robust durability and remarkable 20-year shelf life. Easy to stockpile and suitable for long-term storage, the NBC-77 SOF CBRN filters are safe to use until the expiration date that is marked on the filter housing. The sealed plastic canister can seamlessly fit into any emergency preparedness or survival kit and features a highly durable construction resistant to shock and impact for reliable operation and protection when you or your family need it the most.
- MIRA SAFETY: Trusted by professionals around the globe. We provide cutting-edge equipment and self-defense gear that meets the demands of top-tier military operators—with key engineering enhancements to make them more practical and effective on the homefront, including solutions for children and the elderly. Dedicated to delivering superior products and unrivaled satisfaction, we continually strive to maintain uncompromising workmanship and excellent customer service with every purchase.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08D78Q9SJ |
| ASIN  | B08D78Q9SJ |
| Best Sellers Rank | #14,804 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #23 in Respirator Cartridges & Filters |
| Brand Name | MIRA Safety |
| Color | Cbrn Filter Nbc-77 Sof |
| Customer Reviews | 4.6 4.6 out of 5 stars (285) |
| Date First Available  | July 18, 2020 |
| Manufacturer | MIRA SAFETY |
| Manufacturer  | MIRA SAFETY |
| Material Type | Plastic |
| Model Name | NBC-77 |
| Number of Layers | 1 |
| Package Dimensions  | 4.57 x 4.53 x 3.94 inches; 14.89 ounces |
| Size | 40 millimeters |
| Unit Count | 1 Count |

## Product Details

- **Brand:** MIRA Safety
- **Color:** Cbrn Filter Nbc-77 Sof
- **Material:** Plastic
- **Model Name:** NBC-77
- **Size:** 40 millimeters

## Images

![NBC-77 SOF - Single 40mm Gas Mask Filter - Special Combined CBRN Respirator Filters - NATO Standard Size (40mm x 1/7") - Canister Filter Fits CBRN Gas Masks - 20 Year Shelf Life - Image 1](https://m.media-amazon.com/images/I/81zNgU3QqrL.jpg)

## Questions & Answers

**Q: How long will the filter remain useable when attached to the Mira mask,stored in it's carrier?  (ready for deployment),3mo,6mo ,ect**
A: Depends on air quality and how dense your local cbrn attack is in the air. Some canister could be used up with compete saturation of filtered poison . Others could last 30/60 days without use and even longer depending on what type of filtering you will need

**Q: How long will this filter stay good "un-opened"?**
A: 20 years

**Q: will this fit a 3M 6700?**
A: It will fit any mask that takes a 40 mm filter all NATO gas mask will take a 40 mm filter

**Q: Can this filter carbon monoxide?**
A: Carbon Monoxide is a dangerous gas and can displace breathable air in a poorly ventilated, enclosed space.  CBRN filters are not an effective solution and should not be used in any oxygen deficient environment.  20,000 emergency room visits every year are caused by CO poisoning.  The best solution for CO is to ventilate area well with fresh air.  To ensure you can work in an environment with CO you need an SCBA (self-contained breathing apparatus) and appropriate training.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by M***. on February 28, 2026*

Excelente calidad y atención, lo mejor!

### ⭐⭐⭐⭐⭐ Legit
*by C***. on February 11, 2026*

Came in OEM packaging, official MIRA product. Hopefully I will never have to use it.

### ⭐⭐⭐⭐⭐ Good
*by H***D on July 5, 2025*

Perfect!

## Frequently Bought Together

- MIRA Safety - NBC-77 SOF - Single 40mm Gas Mask Filter - Special Combined CBRN Respirator Filters - NATO Standard Size (40mm x 1/7") - Canister Filter Fits CBRN Gas Masks - 20 Year Shelf Life
- MIRA Safety CM-I01 Full-Face Industrial-Grade Gas Mask with 40mm NATO Filter Compatibility and Advanced Valve Design
- Gas Mask Pouch Bag Respirator-Gear Survival Emergency Professional Equipment (Pouch)

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---

*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-03-13*