Our N95 Model 3230 Comfort Respirators from American company Gerson are NIOSH approved and meet the CDC guidelines for TB exposure control. You get a case which contains 4 boxes with 50 individually packaged masks for a total of 200 pieces.
Double strap sits wider on the face for more comfort and less pinching. Typical applications include viruses, cutting, demolition, sanding and grinding, mold remediation and dust and pollen. 100% made in the USA. You won't find a better quality mask from a long-standing reputable company like First Aid Global.