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and lens tints from clear to smoke
Does the PD2903 have a cut-resistant liner
the 6430 Alphas is NRR 27 (reusable flanged)
it is also not rated for chemicals
MSA Advantage N95 Snap-On Prefilter Disc (50-pack) Particulate Respirator and lens tints from clearEDITORIAL REVIEW: 4. 5 5WC Safety Review MSA Advantage N95 Snap On Prefilter Best For: adding N95 particulate protection over an MSA Advantage cartridge and extending its life. Not For: gases, and it is not a standalone respirator use it with a cover over an Advantage cartridge. Bottom Line: the snap on N95 prefilter for the MSA Advantage system; pair it with the reusable cover and your gas cartridge. Editorial assessment by Steven Eaton, WC Safety
