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1. Embed this notice
   Luigi Muffingione (riotmuffin@ni.hil.ist)'s status on Tuesday, 21-Nov-2023 21:12:50 JST Luigi Muffingione

   Having an event? Want to give out free N95s, but they cost more money than you wanna spend?

   Here's N95s for FIVE CENTS EACH

   (these have the kind of elastic that wears out easily so you can't get as many re-wears.... hence they're great for situations where many people are likely to toss them after one use anyway, like people who didn't bring their own mask to an event)

   https://www.northernsafety.com/Product/355196/Jackson-Safety-N95-Disposable-Particulate-Respirator-50-Bag

   • Embed this notice
     Chicken :cqlgusu: (lookitmychicken@blorbo.social)'s status on Wednesday, 22-Nov-2023 03:25:11 JST Chicken :cqlgusu:

     in reply to

     @riotmuffin
     Wait, how many effective wears can you get out of a regular N95 mask?

     I've been assuming that they're all supposed to be single use, and only wearing them for a day before throwing them out.

   • Embed this notice
     sleepfreeparent (sleepfreeparent@kolektiva.social)'s status on Wednesday, 22-Nov-2023 08:02:10 JST sleepfreeparent

     in reply to

     • Chicken :cqlgusu:

     @riotmuffin @lookitmychicken I too have seen such statements about n95s longevity. I also recently saw some work looking at the aerosol filtration over time that was talking about how the electrets in the filter can lose charge over time, especially with high humidity. N95s work because these permanently charged fibers exert force on small particles as they pass through, causing collisions.

     I may have even boosted a toot referencing it, but I can't even search my own feed on mastodon so now I can't find it anymore. Anyway that work was recommending approx 20 hours. I'll post a link if I find it again

   • Embed this notice
     Chicken :cqlgusu: (lookitmychicken@blorbo.social)'s status on Wednesday, 22-Nov-2023 08:02:10 JST Chicken :cqlgusu:

     in reply to

     • sleepfreeparent

     @sleepfreeparent @riotmuffin
     Yay that's so cool! Suddenly N95s seem like a much more cost-effective option than I had realised. :D

   • Embed this notice
     Luigi Muffingione (riotmuffin@ni.hil.ist)'s status on Wednesday, 22-Nov-2023 08:02:11 JST Luigi Muffingione

     in reply to

     • Chicken :cqlgusu:

     @lookitmychicken oh no! A lot of people have that same misconception, though. Although it sometimes makes sense for them to be single use in, say, a hospital or industrial setting, my understanding is that for everyday usage you can pretty much wear them til there’s not a good fit anymore, or til they get gross.

     I wish I remember the source rn, but I recently read that part of the n95 standard is that they are supposed to maintain effectiveness for up to 200 hours of use. Anyone else know more than me? #covidIsNotOver