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It uses a lightweight wraparound polycarbonate lens in a soft TPR frame with rubberized temple tips and an adjustable nosepiece
From the published specs: ANSI/ISEA 105 A2 cut resistance
the 6430 Alphas is NRR 27 (reusable flanged)
switch to the 3M 60921 for organic vapor plus particulate protection
it is also not rated for chemicals
MSA Advantage N95 Snap-On Prefilter Disc (50-pack) Particulate Respirator It uses a lightweight wraparoundEDITORIAL 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
