3M NIOSH N95 Approved Respirator with Vent (Easier Breathing, Same Protection) - Face Mask with Vent - 2 Packs of 10 Approved and meets NIOSH and CDC guidelines 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 - One Size Fits All / 2 Packs of 10