I’ve been obsessing interested in air quality for the last 2 months (pretty much because I saw that famous DHH talk and the Awair Element gamify it - but I highly recommend it to check if the changes you’re making are actually working). Here are a few things to consider:
- if you care about PM2.5 and you live in a city with “hard water” (eg: Toronto), don’t get an ultrasonic humidifier. Here’s what turning on a Levoit ultrasonic humidifier do to your PM2.5 levels (that big drop is when I turned it off - also, the white dust is a PITA). Get one with an evaporative system - basically, those ones that have a fan (this one from Honeywell is super quiet, **easy to refil