The 3M 4251+ Reusable Half Mask Respirator is a maintenance free face mask that is supplied ready to use. The mask is versatile, easy to use and provides protection from a wide range of gases and particulates. The mask is exempt from the maintenance requirements of COSHH regulations if disposed of within 28 days. Alternatively, replace the mask when it is damaged, breathing resistance increases or breakthrough occurs, whichever happens first.
- A1 - protects against organic vapours with boiling points above 65°C in concentrations of up to 10 x WEL or 1000ppm.
- P2 - protects against moderate levels of hazardous fine dusts, water and oil based mists or aerosols and biological agents of risk group 2 in concentrations of up to 10 x WEL.
- R - reusable. Can be used for more than one shift and fulfil the 120mg loading test with solids and liquid aerosols.
- D - these filters have passed the Dolomite clogging test, giving the user better breathing resistance.