There are lots of kinds of Face Masks and Respirators. The one you need depends on what you are doing.
Developed and manufactured by Global Safety First LLC
Hypoallergenic medical adhesive forms a complete seal around all edges
Patented Sealing System prevents contaminants from entering through the perimeter
Reduces risk of fluid strike-through and protects against micron-size particles; Double bands secure
Features a large Breathing Chamber with Advanced Filtration; Size: Regular.