Portwest 2026

P431 P421 P418 CE CAT III CE CAT III CE CAT III | 883 HALF MASK FILTER SELECTION GUIDE FOR P421/P431 HALF MASKS AND P500 FULL FACE MASK BAYONET FILTERS EN143:2007/EN14387:2008 TYPE A Application: Organic Vapours and Gases with a boiling point of 65C and above (solvents and hydrocarbons). TYPE K Application: Ammonia and its Organic Ammonia Derivatives Vapours and Gases TYPE B Application: Inorganic Vapours and Gases (excluding Carbon Dioxide/ Monoxide) TYPE ABEK Application: Combination Filter (all of the above) TYPE E Application: Sulphur Dioxide and other Acidic Vapours and Gases TYPE P Application: P. Dust/Particle P441 ABEK1P3 READY TO USE HALF MASK EN 405: 2001 + A1: 2009 TYPE ABEK CLASS 1 R D EN 405: 2001 + A1: 2009 TYPE P CLASS 3 R D TPE Black ∙ Ready to use and maintenance free ∙ Compact low profile design for maximum visibility and ease of movement ∙ High performance exhalation valve to reduce heat and provide comfort when used in hot and humid conditions ∙ Drop-down head strap design allows easy removal P440 A2P3 READY TO USE HALF MASK EN 405: 2001 + A1: 2009 TYPE A CLASS 2 R D EN 405: 2001 + A1: 2009 TYPE P CLASS 3 R D TPE Black ∙ Ready to use and maintenance free ∙ Compact low profile design for maximum visibility and ease of movement ∙ High performance exhalation valve to reduce heat and provide comfort when used in hot and humid conditions ∙ Drop-down head strap design allows easy removal P422 TPR HALF MASK KIT (WITH P3 FILTERS) EN 140: 1998 Thermoplastic Rubber Grey S/M,M/L ∙ Comprises of a P421 Half Mask, fitted with a pair of P941 P3 particulate filters ∙ Dual bayonet filter connections ∙ Quick and easy to disassemble for cleaning ∙ 4-point plastic suspension harness for wearer comfort, safety and easy cleaning SEE PORTWEST.COM FOR MORE RESPIRATORY HALF MASKS AND FILTERS Code Filter Type Class P902 A2 Gas Filter Bayonet Connection (Pk6) A2 P921 ABEK1 Gas Filter Bayonet Connection (Pk6) ABEK1 P941 P3 Particle Filter Bayonet Connection (Pk6) P3R P952 A2P3 Combination Filter Bayonet Connection (Pk4) A2P3 P971 ABEK1P3 Combination Filter Bayonet Connection (Pk4) ABEK1P3R New

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