Meant to ask but it slipped my mind- what is the multiplier for having windows open?
I'm guessing the filter and windows factors don't quite just "multiply" with each other.


On Tue, Dec 21, 2021 at 5:16 PM Cally Perry <cally.perry@gmail.com> wrote:
Hi folks,

I said at the meeting that I'd post the microcovid site that I used to get my estimate that air filtering was a substantial help.  In particular, the presence of an air filter at my best approximation of a bell tower ringing room introduced a risk multiplier of .25.   Reducing risk by 3/4 seems super worth it to me.

This site is great at letting you analyze your risk, but unsurprisingly not yet updated for omicron:
https://www.microcovid.org/

Meanwhile, back at the ranch, in case you haven't heard, we are ringing online, Monday nights and often Wednesday nights.  We would love it if you could join us.  Let me know if you want information about the discord and na.ringingroom.com rooms.

Cheer,
Cally

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