Trend Air Stealth Safety Respirator Half Mask - Small / Medium The Trend Air Stealth is a new generation P3R half mask, ergonomically designed with low profile design. The mask is rated at APF20 with an Assigned Protection Factor 20. Offering less breathing resistance, less clogging pressure and inward leakage. The mask protects the user against airborne particles, oil aerosols, mist, welds and fumes. Sold in 2 sizes: Small / Medium and Medium / Large. Features: Approval P3(R) APF20 x WEL Twin HEPAC pleat encapsulated design filter provides 99.99% filtration of airborne particles and aerosols at 0.3 micron and above Exhalation valve on bottom of face piece, ensuring no exhalation fumes steam or fog of any glasses/visors Protective grill covers 100% of filter surface Grill protects filter from moisture and particulates, ensuring it performs better in clogging pressure and filtration efficiency Unique integral sample port and plug allow non-destructive face fitting Large non-return valve Single piece head and neck strap with quick release Manufactured from high-grade materials, odour free, non-allergenic. TPE mask body is latex and silicone free Conforms to half mask standard BS EN 140 Respiratory protection to BS EN143 P3R High Efficiency Particulate Air Composite Comes With: 1 x Pair P3 filters 1 x Storage bag Specification: Size: Small/Medium Respiratory protection: BS EN143 P3R Assigned Protection Factor: APF20 Conforms to half mask standard: BS EN 140 Weight 0.131kg