The Trend AIR STEALTH Half Mask protects the user against airborne particles, oil mist, welds and fumes. Fitted with a twin HEPAC pleat encapsulated filter, that provides 99.99% filtration of airborne particles and aerosols at 0.3 micron and above. The exhalation valve is located at the bottom of the face piece, this helps to prevent exhalation fumes steaming or fogging glasses/visors. A protective grill covers 100% of filter surface. Protecting the filter from moisture and particulates, ensuring it performs better in clogging pressure and filtration efficiency. New generation P3 R half mask, with low profile ergonomic design. Offers less breathing resistance. Less clogging pressure and inward leakage. Approval P3 (R) APF20 x WEL Protects the user against airborne particles, .