Stanley Personal Protection MC/P100 Half Mask Respirator RST-64013 is a highly adjustable, incredibly effective half-mask respirator for use wherever hazardous fumes and airborne irritants are present. These high-grade Stanley Personal Protection safety masks feature large breathing ports for low breathing resistance, plus an incredibly comfortable and customizable split strap, which has eight strap adjustment points so you can have your mask fit the way you want it. Stanley has equipped the mask with P-100 and Multi-Contaminant filters, so it is built to handle almost anything you can throw at it. The Stanley Personal Protection MC Half-Mask Silicone Respirator has a low profile nose piece, allowing it to be used while you're wearing glasses or goggles. These lab safety masks are incredibly comfortable, with a lightweight silicone face piece, a soft-sealing flange with rolled edges, and a rear split strap that makes the mask easy to put on. For a highly efficient, very comfortable respirator that will keep your lungs safe and your face happy, use the Stanley Personal Protection Multi-Contaminant Half Mask Respirator.