Guides

3M FF-801 vs 6800 compared: two reusable full facepieces that protect lungs and eyes the same but connect differently — the FF-801 is a Secure Click FF-800 (push-and-click D-series cartridges) and the 6800 is the medium 6000-series bayonet facepiece (6000-series cartridges, widest selection). Which to buy by ecosystem, comfort and cost, with sizing/fit notes and a 10-question FAQ.

3M Secure Click vs bayonet respirators compared: both reusable systems reach the same NIOSH protection classes, but Secure Click (HF-800/FF-800) uses a push-and-click connection with D-series cartridges while bayonet (6000/6500/7500) twists on the 6000-series cartridges and 2000-series filters. They don't share cartridges — so pick the ecosystem by selection, cost and workflow. Includes an 11-question FAQ.

3M 6000 vs 6500 — same cartridges and protection. The 6500QL adds a Quick-Latch drop-down and Cool Flow valve. See which 3M half mask fits how you work.