PM2.5 is at 104ug/m3 indoors with an open window.
this post was submitted on 06 Jun 2025
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Having flashbacks to the fires from a couple of years ago. We were nowhere near (these were the Quebec fires IIRC) but outdoor AQI was bad for weeks, regularly topping 300 and peaking at 4-500. Had everything closed up, AC and multiple HEPA purifiers running, and it was still awful indoors.
Yeah, I remember that. We had HEPA filters running then, too. I couldn't go cycling during that time because of how bad the air quality was. Not good for anyone with sensitivities or lung/breathing problems.