3M™ Maintenance Free Half Mask 4277
Features & Benefits
- Effective and comfortable protection against a range of vapour and particulate hazards.
- A newly enhanced valve assembly helps to reduce exhalation breathing resistance for improved breathing comfort.
- Lightweight, well-balanced design.
- Integrated cartridge and filters mean it’s 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.
Environments
- Hazardous Industrial Environments
Specifications
| Face Mask | Thermoplastic elastomer |
| Head Harness | Polypropylene |
| Head Strap | Polypropylene/cotton |
| Inhalation Valve | Polyisoprene |
| Exhalation Valve | Silicone Rubber |
| Gas and Vapour Filter Body | Activated Carbon |
| Particulate Filter Element | Polypropylene |
| EN Standards | EN 405:2001+A1:2009 FFABE1P3 R D |