Product Reviews

Yes — if you run MSA Advantage half-masks in environments with oil-based aerosols and you are using or plan to use the MSA 815397 R95 prefilter disc, the MSA 815401 is the correct and required cover. It is not optional hardware — the R95 disc cannot create a sealed filtration assembly without it.…

Moldex 2940R95 HandyStrap review: Nuisance Acid Gas Valve R95 for Chemical-Mist Work. Specification-based look at specs, fit, compatibility, pros and cons, and who it's for.

Moldex 2840R95 HandyStrap review: Nuisance OV Valve R95 for Coolant-Mist Environments. Specification-based look at specs, fit, compatibility, pros and cons, and who it's for.

Moldex 2740R95 HandyStrap review: R95 Oil-Resistant N95 for Hard-Hat Wearers. Specification-based look at specs, fit, compatibility, pros and cons, and who it's for.

Honeywell North 7504R95 R95 Prefilter review - specs, fit, pros and cons, NIOSH/OSHA compliance, and who it's for.

Honeywell North 7506R95 R95 Oil-Resistant Prefilter review - specs, fit, pros and cons, NIOSH/OSHA compliance, and who it's for.