3M PS 100 is the economical choice for comfortable welding, PS100 provides enhanced comfort and protection to welders.Features: Conforms to EN175F and EN166 View area: 85mm by 110mm Breathing vents to reduce heat build Lightweight, increasing comfort Polycarbonate protection plates Available in shade 11   Ergonomically designed breathing vents reduce CO2 build up inside the welding shield offering welders superior comfort. Low weight design allows welders to wear the shield over long durations without causing neck strain