The 3M 4277+ Reusable Half Mask Respirator is a ready to use face mask that provides protection from a wide range of common workplace hazards. The mask is exempt from the maintenance requirements of COSHH regulations if disposed of within 28 days. Alternatively, replace when damaged, breathing resistance increases or breakthrough occurs (whichever occurs first).

• b>FFABE1 - protects against organic vapours with boiling points above 65°C, inorganic vapours and acid gases in concentrations of up to 10 x WEL or 1000ppm.
• FFABE1 - protects against organic vapours with boiling points above 65°C, inorganic vapours and acid gases in concentrations of up to 10 x WEL or 1000ppm.
• P3 - protects against harmful or carcinogenic dusts, water and oil based mists or aerosols and biological agents of risk groups 2 and 3 in concentrations of up to 20 x WEL.
• R - reusable. The filter can be used for longer than one shift and fulfils the 120 mg loading test with solids and liquid aerosols.
• D - these filters have passed the Dolomite clogging test, giving the user better breathing resistance.