CBRNCF50 Filter

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Price $63.95

The Avon CBRNCF50 Filter is a CBRN filter canister designed to meet the NIOSH CBRN APR standard at the 15-minute classification level (Cap 1), the EUROPEAN STANDARD, EN 14387 (A1B2E1K1 P3), and the relevant criteria specified in the NATO Triptych for protection against chemical and biological warfare agents in aerosol, liquid and vapor form. The filter has a Threaded Convertor Piece (TCP) that when removed creates a filter with a unique conformal shape providing a low profile, close fit with the mask. Once the TCP is removed the canister becomes a CBRNCF50i. The CBRNCF50i is only approved to NIOSH Cap 1 when fitted to Avon masks it provides effective protection against all the gaseous agents specified in the NIOSH CBRN standard, as well as excellent performance against a wider range of both chemical warfare agents and Toxic Industrial Chemicals (TICs). A particulate filter element exceeding the requirements of NIOSH 42CFR84 P100 and EN 14387 (P3) is incorporated, ensuring effective performance against all dusts, mists, fumes, biological agents (bacteria, virus, fungal spores etc), including radioactive dusts. When combined with an appropriate chemical protective mask, the CBRNCF50 filter canister protects the face, eyes and gastrointestinal tract of the wearer against known chemical and biological agents in aerosol, liquid and vapor form including:

*Nerve Agents: “G” Series,  “V” Series (Any thickened form of agent)

*Blister Agents: Mustard, Lewisite (Any thickened form of agent)
*Blood Agents: Hydrogen Cyanide, Cyanogen Chloride
*Riot Control Agents: CS, CN, OC (Pepper Spray)

The protection against many Toxic Industrial Chemicals (TICs) includes, but is not limited to: organic vapors with a boiling point over 65°C, chlorine, hydrogen sulfide, sulfur dioxide, formaldehyde, nitrogen dioxide, phosgene, phosphine, hydrogen chloride, hydrogen fluoride, methlyamine, and ammonia.


The canister body is made of a modified polyphenylene etherpolystyrene blend (PPE&PS), which is a high quality engineering
construction polymer. It provides a very robust product which is extremely durable against shock and impact in operational use.
The canister body is black in color and has a spark finish to reduce reflection.  Gas adsorption is by chrome free activated charcoal impregnated with metallic salts and other compounds to provide a balanced performance against both physically and chemically adsorbed species. The high efficiency filter element is made of PTFE, PET/PE.  The CBRNCF50 is entirely non-ferrous and non-magnetic.


*Diameter Ø111mm
*Weight 365 grams (typical)
*Thread 40mm to NATO STANAG 4155
*Color Black


*Breathing resistance: 45mm of H2O @ 85 l/min (typical

*Effectiveness Against Chemical and Biological Agents: Typical performance against the gaseous agents specified in the NIOSH CBRN APR standard, chemical warfare agents and also for industrial agents TIC/TIMs is detailed below.


Challenge Concentration (PPM)

Protection Time (Minutes)

Nerve Agent



Hydrogen Cyanide



Cyanogen Chloride












Hydrogen Sulfide



Nitrogen Dioxide









Sulfur Dioxide



Industrial Agents TIC/TIMS

a-Chloroacetophenone (CN)



o-Chlorobenzylidene Malonitrile (CS)



Hydrogen Sulfide



Hydrogen Fluoride



Hydrogen Chloride










Note that the protection time is indicated for standard laboratory test conditions. THESE DO NOT NECESSARILY RELATE TO ACTUAL USE TIMES. Actual use times must be verified on the basis of a risk assessment of the likely hazards present in the intended use area.


A unique standard humidity indicator is located on the top of the CBRNCF50 filter and visually displays performance degradation due to moisture uptake over time. The indicator turns white to blue signaling that the unit pack was compromised and the filter must be discarded.


The rugged exterior filter container is designed to be stackable, tamper evident and includes relevant information such as lot number and expiration date.


The materials used and the method of construction of the filter canister have been designed to meet operation and storage
requirements in accordance with NIOSH CBRN criteria. When stored in its original packaging the filter canister retains its operational effectiveness and efficiency under the following environmental storage conditions:
Operational Temperature –32°C to 71°C
The filters have been exposed to high and low ambient storage temperatures without harmful effects.
Humidity range 5% to 100% RH
The filter has been tested following storage in high humidity environments and has been found to be effective.

Rain: The filter will retain its effectiveness in heavy rainfall conditions and is
not prone to water ingress.
Salt Breeze: The filter will not deteriorate with exposure to salt breezes for 24
Sand and Dust: The filter will not deteriorate when exposed to 24 hours of wind driven
sand and dust conditions.

Recommended Storage and Shelf Life: The predicted shelf life of the filter canister (sealed and packaged)
is 5 years when stored at 20 ± 10° C, <80%RH. 

The CBRNCF50 is entirely non-ferrous and non-magnetic.

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