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Gas mask filter

Filtering air purifying respirators are efficient only if equipped with the proper gas, vapor or particles filter. The gas mask filter selection depends on the type of encountered gases, vapors and particles. According to the applications and the present gas, there are different gas filter types

Gas mask filter and respirator cartridges for air purifying respiratory protection

Gas mask filter codification

Gas filters

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:

filtre type A AX

A

Organic gas and vapor with boiling point above 65°C (solvents, hydrocarbons, alcohols, benzene, ethanol, refrigerants/freons, white spirit)

filtre type A

AX

Organic compound gas and vapor with boiling point below 65°C (many VOCs, methyl acetate, acetone, chloroform, methanol, phenol, styrene)

Filtre type B

B

Inorganic gas and vapor (hydrocyanic acid, bromine, chlorine, cyanide, chlorine dioxide, fluorine, hydrogen sulfide, carbon disulfide)

Filtre type CO

CO

Carbon monoxide

Filtre type E

E

Acid gas and vapor – mainly associated with P3 – (acrylic acid, formic acid, nitric acid, hydrogen chloride, sulfur dioxide, hydrogen fluoride)

Filtre type Hg

Hg

Mercury vapor and derivatives – mainly associated with P3

Filtre type K

K

Ammonia and organic derivatives (DMA, DMEA, hydrazine, methylamine, MMH, UMDS)

Filtre type Nox

Nox

Nitric oxide, nitrogen oxide, nitrous vapor

Filtre type REACTOR

REACTOR

Radioactive iodine, radioactive methyl iodine

Filtre type SX

Sx

Specific manufacturer mentioned gas and vapor

Filtre type P

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)

Find the proper respirator cartridge filter for your application

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

Our gas mask filter range :

Respiratory protection filters – PRO2000

PRO2000 NO & CO combined filter for full-face mask is the world most efficient air purifying protection against gases and particles.

  • respiratory protection filters for workers safety
  • High performance filter: ABEK1NOCO20-P3 & A2B2E2K1HgNOCO20-P3
  • Efficient against any gas or vapor that can be filtered
  • Universal DIN40 mm thread in compliance with EN148-1 standard
  • Reinforces polyamide enclosure
  • Complies with EN 14287:2004 standards
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High-performance respiratory protection filters

The use of PRO2000 NO & CO respiratory protection filters is currently the worlds most complete filtration.

  • Respiratory protection filters PRO2000
  • High-performance filter: A1B1E1K1NOCO20-P3 & A2B2E2K1HgNOCO20-P3.
  • Efficient against almost every gases and vapors that can be filtered.
  • DIN40 mm universal connection.
  • Cas ematerial : reinforced polyamide
  • Compliant with EN 14287:2004 and EN 148-1 standards
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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

  • Drager X-plore gas mask filters: universal 40mm thread, CBRN and ABEK filters for PAPRs and gas masks
  • Cover a large range of toxic substances
  • Gas, particles or combined filters
  • 6 to 12 years operating life
  • Housing made of aluminium
  • Additional information

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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.

  • Drager X-plore bayonet filters for dual filter gas masks – gas, vapors, particulates, and combined filters NBC ABEK P3 bi-cartouche - gaz, vapeurs, particules et filtres combinés - NBC & ABEK-P3
  • 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

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