The 3M 4277+ Reusable Half Mask is maintenance free, meaning the cartridge and filters are integrated and therefore ready to go straight out of the box. It provides incredibly effective against a range of vapour and particulates that would otherwise be hazardous to health.
It provides protection against organic vapours (good warning properties and b.pt. > 65°C, inorganic gases up to 10 x WEL or 1000 parts per million (whichever is lower) and up to 20 x WEL for particulates.
On this mask is a newly enhanced valve for additional comfort by reducing resistance to exhalation when breathing improving on its already existing brilliantly comfortable lightweight design. This valve is also centrally positioned to help reduce the build-up of moisture and heat. It also a soft and close-fitting face seal made with non-allergenic material, while the adjustable head cradle and easy-to-adjust neck straps makes putting it on a breeze.
Each mask includes a resealable bag for hygienic storage and transport. Always read manufacturer instructions before using this product.
Datasheets for this product are available under the Documents tab.