#fullfaceelastomeric — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #fullfaceelastomeric, aggregated by home.social.
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So, the other day I noticed a strap on my Honeywell RU6500 #FullFaceElastomeric had broken… this is one I was keeping around for parts, so not a big issue… but the thought of the same fate meeting my current one worried me a bit.
Looked around, found a new Sundström SR200 going for a bargain price (AU$250… normally they are >$550)… beauty. It's on its way south from Mt. Isa.
Today I ordered some filters (from a local supplier here in Brisbane), mainly some #P3 filters (my main concern is #bushfire smoke and #COVID19)… I happened to notice this little chart for the SR-510 particular filters.
https://www.allensindustrial.com.au/documents/Sundstrom%20SR510%20Brochure.pdf
Classes:
- P1: 80% | up to 20% leakage | Protect against Dry and Wet particles _except_ aerosols, carcinogens, radioactive particles, bacteria, *viruses*, spores or biochemicals such as enzymes or hormones
- P2: 94% | up to 6% leakage | Protect against Dry and Wet particles _except_ *viruses*, spores or biochemicals such as enzymes or hormones
- P3: 99.95% | <0.05% leakage | Protect against Dry and wet particles (all types)It was the exceptions for "viruses" in the #P2 and #P1 filters that surprised me. I thought #P2 was more or less equivalent to #N95 and #KF94. (P3 being equivalent to #N100) I hear people singing the praises of N95s with regards to COVID-19, and definitely it beats many common alternatives, but this has me scratching my head.
The SR-510 is a P3 filter, so no biggie… but I thought P2s were up to the task.