Guides

The best 3M Secure Click filters for the HF-800 series respirator, ranked by hazard: the D3091 P100 for silica, lead and metal fume; the D3071 P95 for oil mist and general dust; the D3097 and D3096 for solvent or acid odor; and the D9093 hard case for reuse. Why these filters do not stop gas, full HF-800/FF-800 compatibility, and a 12-question FAQ.

3M D3078 vs D3097 compared: the D3078 is a plain Secure Click P95 filter sold as a single pair, while the D3097 is P100 with nuisance organic vapor relief — two upgrades in one, higher efficiency and solvent-odor comfort. Why nuisance relief is not vapor protection, when each filter fits, buyer picks and a 12-question FAQ.

3M D3071 vs D3091 compared: both are 3M Secure Click particulate filters — the D3071 is P95 (95%, oil-resistant) for oil mist and general aerosol; the D3091 is P100 (99.97%) for silica, lead, hexavalent chromium and metal fume. Efficiency classes explained, Secure Click compatibility, buyer picks and a 12-question FAQ.

A research-grade comparison of the 3M 5N11 (N95) and 3M 5P71 (P95) particulate prefilters. The 5N11 covers non-oil aerosols only; the 5P71 is oil-proof and handles oil mist and overspray. We cover spray painting, sanding, fiberglass, use with the 501 retainer and 6001 cartridge, and which prefilter to buy.

3M P95 vs P100: Both P95 and P100 are oil-resistant particulate filters under NIOSH's classification. P95 captures at least 95% of airborne particles. P100 captures at least 99.97% and is color-coded magenta. For many general industrial applications, P95 is sufficient.