Half Mask Respirator, 7000 Series, Not Rated, Medium. Soft Silicone facepiece feels supple on the face, yet firmly retains its shape. Sleek design for modern, high-tech look and increased worker acceptance. Light weight design plus extra-wide flexible face seal delivers all-day comfort. Low profile, compact design provides wide field of vision and 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. Maintenance made simple with very few replacement parts.