This 3M 4255+ half mask is a ready-to-use respirator for work where organic vapours and hazardous particulates are present. The cartridge and filters are built in, so there are no parts to fit or replace.
It suits longer wear and warmer conditions. A centrally positioned exhalation valve helps limit heat and moisture build-up inside the mask. The lightweight, low-profile design sits comfortably on the face.
Key features
- Integrated cartridge and filters make the mask ready to use and maintenance free
- Newly enhanced valve assembly reduces exhalation breathing resistance for more comfortable breathing
- Centrally positioned exhalation valve helps reduce heat and moisture build-up in hot and humid conditions
- Soft, textured, non-allergenic face seal gives a close fit against the face
- Adjustable head cradle and easy-to-fasten neck straps help you get a secure fit quickly
- Lightweight, well-balanced, low-profile design
- Supplied with a resealable bag for hygienic storage and transport
Standards and protection
Certified to EN 405:2001+A1:2009.
Understanding the FFA2P3 R D rating
The FFA2P3 R D rating covers organic vapours with a boiling point above 65 °C, up to 10 x the Workplace Exposure Limit (WEL) or 5000 ppm, whichever is lower. For particulates, it protects up to 20 x WEL.
Care
Follow the care instructions on the label.




