The 3M™ 4277+ Half Mask is a simple, ready-to-use respirator with an integrated cartridge and filters. Designed for comfort and reliability, it features an enhanced valve assembly to reduce exhalation resistance and a soft, non-allergenic, close-fitting face seal. Supplied with a resealable bag for hygienic storage and transport.

Key Features:

• Protection against organic vapours, inorganic vapours, acid gases, and hazardous particulates.

• Enhanced valve assembly reduces exhalation resistance for improved comfort.

• Lightweight, well-balanced, low-profile design.

• Integrated cartridge and filters – maintenance-free and ready to use.

• Soft, textured, non-silicone face seal for a secure and comfortable fit.

• Adjustable head cradle and easy-to-fasten neck straps.

• Centrally positioned exhalation valve to minimise heat and moisture build-up.

• Supplied with a resealable storage bag.

Protection Level:

• FFABE1P3 R D:

  • Organic vapours (boiling point > 65 °C), inorganic vapours, and acid gases up to 10x WEL or 1000 ppm (whichever is lower).

  • Particulates up to 20x WEL.

Standards & Certification:

• EN 405:2001 + A1:2009.