Level 3 surgical masks — the highest ASTM fluid-resistance rating. ASTM Level 3 is what dental offices, medical clinics, and procedures with splash or spray risk call for, and we stock two: Canadian-made ASTM Level 3 masks and Level 3 BFE 98%+ masks, each by the box of 50.
What the levels mean: ASTM F2100 grades medical masks on filtration, breathability, and fluid resistance — Level 3 carries the highest fluid-pressure rating (160 mmHg), the specification for dental hygiene, oral surgery, and any spray-generating procedure. If your infection-control protocol names a level, this is the shelf it points to. All 3-ply with comfortable ear loops, supplied under MDEL #17341. See the full Canadian-made mask lineup, or step up to 3M N95s and CA-N95s for respirator-level protection. Shipping across Canada and to the United States.