Half Mask Respirator, 7000 Series, Not Rated, Large. Sleek design for modern, high-tech look and increased worker acceptance. Light weight design plus extra-wide sealing area provides all-day comfort. Low profile, compact design fits well under welding helmets and with safety glasses. Mask drops down for convenient storage around the neck or locks down for custom fit. Adjustable head cradle and curved neck buckles for extra comfort, wide field of vision. Maintenance made simple with very few replacement parts, available pre-assembled and also as individual components, 100% PVC-FreeĀ®.