The 3M 4277+ is a maintenance-free half mask for work around organic vapours, inorganic vapours, acid gases and hazardous particulates. The cartridge and filters are built in, so it is ready to wear straight from the bag.
A centrally positioned exhalation valve helps reduce heat and moisture build-up inside the mask, which helps in hot and humid conditions. The lightweight, low-profile design sits in balance on the face, and a resealable bag keeps the mask clean between shifts.
Key features
- Integrated cartridge and filters mean there are no parts to fit or replace before use
- Newly enhanced valve assembly reduces exhalation breathing resistance, so breathing out takes less effort
- Centrally positioned exhalation valve helps reduce heat and moisture build-up in hot, humid conditions
- Soft, close-fitting face seal in textured, non-allergenic material helps the mask seal comfortably against the skin
- Adjustable head cradle and easy-fasten neck straps for a secure, quick fit
- Lightweight, well-balanced, low-profile design
- Resealable bag included for hygienic storage and transport
Standards and protection
Certified to EN 405:2001+A1:2009.
Protection rating explained
The FFABE1P3 R D rating covers organic vapours with a boiling point above 65 °C, inorganic vapours and acid gases up to 10 x the Workplace Exposure Limit (WEL) or 1000 ppm, whichever is lower. For particulates, it protects up to 20 x WEL.
Care
Follow the care instructions on the label.




