Gas Mask Filter

Gas mask filter codification

Gas filters

For each gas mask category and depending on the nature of gases or vapors, there are different gas mask filter types. Each respirator cartridge is labeled with a letter and a specific color for every gas or gas family in compliance with the EN 14687 European standard.

Gas mask filter respirator cartridge color codes:

	A	Organic gas and vapor with boiling point above 65°C (solvents, hydrocarbons, alcohols, benzene, ethanol, refrigerants/freons, white spirit)
	AX	Organic compound gas and vapor with boiling point below 65°C (many VOCs, methyl acetate, acetone, chloroform, methanol, phenol, styrene)
	B	Inorganic gas and vapor (hydrocyanic acid, bromine, chlorine, cyanide, chlorine dioxide, fluorine, hydrogen sulfide, carbon disulfide)
	CO	Carbon monoxide
	E	Acid gas and vapor – mainly associated with P3 – (acrylic acid, formic acid, nitric acid, hydrogen chloride, sulfur dioxide, hydrogen fluoride)
	Hg	Mercury vapor and derivatives – mainly associated with P3
	K	Ammonia and organic derivatives (DMA, DMEA, hydrazine, methylamine, MMH, UMDS)
	Nox	Nitric oxide, nitrogen oxide, nitrous vapor
	REACTOR	Radioactive iodine, radioactive methyl iodine
	Sx	Specific manufacturer mentioned gas and vapor
	P	Solid and liquid particles (lead, asbestos, ceramic fibers, aerosols), highly toxic and radioactive particles, bacteria and viruses (bird flu, A/H1N1 flue, SRAS, tuberculosis, Ebola virus)

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Gas mask filter categories:

According to the EN143 and EN143/A1 standards, air purifying respirator filters are gathered into efficiency categories.

Maximum toxic substances concentrations allowed:

– Half mask respirator: 50 times the OEL

– Full-face mask respirator: 2000 times the OEL

. Class 1 (lower efficiency): Canister filter (ex: A1) – small capacity, gas rate below 0,1% volume

. Class 2: Cartridge filter (ex: ABEK2) – intermediate capacity, gas rate below 0.5% volume

. Class 3: For a gas rate below 1% volume

Particles filter

For gas mask filters, there are different particles filter classes:

– P1 class filters – low efficiency, stop at least 80% of this aerosol (penetration below 20%)

– P2 class filters – intermediate efficiency, stop at least 94% of this aerosol (penetration below 6%)

– P3 class filters – high efficiency, stop at least 99,95% of this aerosol (penetration below 0,05%)

Combined filters (gas and particles)

As the name implies, a combined gas mask filter stop both gases and particles. These filtering respirator cartridges are heavier than aerosol or gas cartridges but are more efficient. Air enters first a particle filter (which is also a pre-filter) and then goes through a gas filter.

Combined gas and particles filters provide safety against paint droplets and gases as well. These respiratory protective cartridges are mainly used for liquid spraying works.

Filtering air purifying respirator usage limits

Never use filtering respiratory personal protective equipment in the following situations:

– Ambient oxygen rate below 19%

– In confined spaces or any poorly ventilated areas: tanks, tunnels, boat slips…

– When the substance concentration is unknown or immediately dangerous to life or health (IDLH)

– When the substance concentration exceeds the allowable concentration or the filter capacity

In these situations the use of atmosphere supplying respirators like SCBAs, supplied air respirator systems and emergency escape breathing devices is recommended

X-plore bayonet filters

The X-plore bayonet filters range has been designed to easily be connected to dual filter gas masks. These filters are dedicated to efficiently protect users against gases, vapors and particles present in ambient air.

Easy to install thanks to a bayonet system
Efficient protection against gases, vapors and particles
Housing made of robust plastic
EN 14387 and/or EN 143: 2000 compliant
Packed by two for more convenience

Additional information
Especially designed for protection against gases, vapors and particles in ambient air, bayonet filters from the X-plore series combines technologies to improve the user’s safety and comfort.
Compact and lightweight, these respirator cartridges feature an innovative design that perfectly fits with masks and half masks. Furthermore, thanks to their positioning on both sides of a facepiece, these gas mask filters provide a large field of view without annoying the user. The bayonet system enables filters to be safely, quickly and easily mounted. A directional arrow printed on the filters clearly indicates the direction for safe installation on masks.
The X-plore bayonet filters series covers a large range of toxic and harmful substances. This way, these respirator cartridges provide protection against harmful gases, vapors and particles. Moreover, they can be combined to provide optimal breathing protection both against gases and particles. When they are added to gas filters, particle filters can be independently removed and replaced.
Protected in a robust and rugged housing made of ABS (acrylonitrile-butadiene-styrene), these gas mask filters are resistant and are packed by two in order to only open the proper number of filters needed.
Lastly, every filter from the X-plore range for dual-filter systems are certified and labelled with CE marking in compliance with the EN 14387 and/o EN 143:2000 standards.

Icon of Specification sheet X-plore bayonet filter

Specification sheet X-plore bayonet filter (342.9 KiB)

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Gas mask filters X-plore Rd DIN 40

Rd DIN 40 gas mask filters from the X-plore series feature a universal 40 mm thread and provide efficient protection against toxic and harmful substances.

40 mm gas mask filters against: gas, particles, organic vapors and radioactive iodine

Cover a large range of toxic substances
Gas, particles or combined filters
6 to 12 years operating life
Housing made of aluminium

Additional information
X-plore Rd DIN 40 gas mask filters have been especially designed to remove gases and particles present in ambient air. Available to purify air from gases, particles or both (combined filters), these filters efficiently purify inhaled air from harmful and toxic substances present in ambient air.
Thanks to their 40 mm universal thread mounting system, they can be safely fixed to an air purifying respirator mask or a half-mask. These filters are cost-effective and widely used on shipyards, waste treatment plants, or even the steel and chemical industries.
As it is very large, this air purifying gas mask filters range offers protection against many substances from organic vapors up to radioactive iodine.
Especially engineered for improved resistance and long service life, these X-plore Rd DIN 40 mm gas mask filters can last up to 6 years for gas and combined filters and up to 12 years for particulates filters. Moreover, their housing is made of aluminum for enhanced safety. Furthermore, as aluminum can be easily deformed, in one glance users can easily identify if the filtering cartridge has been damaged or not. If the enclosure received a shock, the impact on deformed aluminum can be easily seen and the filter must not be used.
Lastly, compliant with the EN 14387 and/or EN 143:2000 European standards, Rd DIN 40 gas mask filters from the X-plore range are certified and labelled with a CE marking.

Icon of Specification sheet X-plore RD DIN40

Specification sheet X-plore RD DIN40 (164.4 KiB)

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CO / NO gas mask filters X-plore RD40

The CO / NO gas mask filter X-plore RD40 A1B2E2K1 Hg NO P3 RD / CO2O P3 RD “super” cartridge can purify air from gases including carbon monoxide (CO) and nitric oxide (NO) as well as particles and vapors. Equipped with active carbon, hopkalite, glass microfiber and cellulose fiber filters, this filter cartridge made of aluminium features a standard Rd40 connector thread.