Safeyear Face Masks are made of three layers of high quality non-woven fabric, which can effectively stop dust and other intrusion into the mouth and nose with a BFE of more than 95%. Our masks have a built-in nose bridge line that reduces the gap between the mask and the nose and cheeks for a better fit when worn. It is soft to the touch and does not wear the ears for a long time. The fold is three-dimensional and loose, so it will not interfere with breathing. These masks are suitable for the following work environments: Construction, Road & Building Workers, Woodworking, Mining, Casting, Grinding, Food & Cleaning Industry, Electronics, Most Dust Generated Workplaces.