Chaser masks aremedical grade, which requires special certification. The masks are multi-layered (2ply + lining and include a 5 layer filter)Each mask is individually packaged and include 5 replacement filters. The mask is very soft and comfortable, fits the face well and includes nose pinch at the top for comfort and fit and adjustable ear loops.

Mask content: 60%cotton 40%polyster, 2PLY (filter:40%non-woven40% melt-blown 20% activated carbon)