The Vitrex Fold Flat Power Tool & MDF Mask is suitable for working in normal conditions (i.e. for activities involving low-level physical activity and effort). It protects lungs against fine toxic particles and are ideal for use with MDF, softwoods, hardwoods, metals and concrete. Suitable for use with most power tools – drills, saws, grinders, sanders, routers etc. The masks fold flat for easy and convenient storage. 149:2001 A1:2009 FFP2 NR.