3M 4277+ Maintenance Free Organic/Inorganic Vapour, Acid Gases, and Combination Particulate Respirator3MΓäó Maintenance Free Half Mask 4277+ is a simple and ready-to-use respirator with an integrated cartridge and filters. A newly enhanced valve assembly helps to reduce exhalation breathing resistance, and the close-fitting, non-silicone, textured face seal is soft and non-allergenic. Includes a resealable bag for hygienic storage and transportation.• Effective and comfortable protection against organic vapour and hazardous particulates• A newly enhanced valve assembly helps to reduce exhalation breathing resistance for improved breathing comfort• Lightweight, well-balanced, low profile design• Integrated cartridge and filters mean itΓÇÖs ready to use and maintenance free• Soft, close-fitting face seal made with textured, non-allergenic material• Adjustable head cradle and easy to fasten neck straps• Centrally-positioned exhalation valve helps reduce heat and moisture build-up in hot and humid conditions• FFABE1P3 R D provides protection against organic vapours with a boiling point greater than 65 ┬░C, inorganic vapours, and acid gases up to 10 x Workplace Exposure Limit (WEL) or 1000 ppm (whichever is lower), and 20 x WEL for particulates• Includes a resealable bag for hygienic storage and transportation• EN 405:2001+A1:2009