3M 4279+ Maintenance-Free Reusable Half Mask FFABEK1P3

The 3M 4279+ is a ready-to-use, maintenance-free reusable half face mask from the 4000+ Series. It features integrated FFABEK1P3 R D gas, vapour and particulate filters, providing protection against organic vapours (good warning properties, boiling point > 65°C), inorganic gases, acid gases and ammonia up to 10x the Workplace Exposure Limit (WEL) or 1000 ppm (whichever is lower), and 20x WEL for particulates.

The mask has a lightweight, balanced design with twin inhalation valves and large bonded carbon filters with permanently attached particulate filters. A newly improved exhalation valve reduces breathing resistance, and the centrally positioned exhalation valve helps minimise heat and moisture buildup in hot and humid conditions. The soft, close-fitting face seal is made from textured, hypoallergene, silicone-free material. An adjustable head harness and easy-to-fasten neck straps ensure a secure fit across a range of face shapes and sizes.

The integrated filters mean no assembly, maintenance or record keeping is required. The mask is supplied in a resealable bag for hygienic storage and transport. The 3M 4000+ Series meets the performance requirements of European Standard EN 405:2001+A1:2009 for valved filtering half-mask respirators.