3M™ Sanding and fiberglass respirator, used for Non-harmful dusts from sanding, grinding, sawing and insulating particles, is designed to be comfortable and easy-to-use. 3M™ Sanding and fiberglass respirator features proprietary filter technology for easier breathing and an adjustable nose clip that helps reduce eye protection fogging, helps ensure a better seal around the face area and gives the user a snug fit. with a 95% filter efficiency against solid and liquid particles that do not contain oil, the 3M™ sanding and fiberglass respirator is a great choice in respiratory protection for both the Pro and the DIYer when working on projects that include sanding, grinding, sawing and insulation.