Lau et al. (2020) compare tap water, filtered water, distilled water, and deionized water. They find that filtered water reduces particles by around 20%, distilled water by 82%, and deionized by 90%.
which is a big reduction, but elsewhere in the post they mention that ultrasonic humidifiers can raise exposure by 5x, which would still look like almost 2x particle exposure at the 18% reduction produced by distilled water. Did you see any increase in e.g. pm2.5 counts when running this?
Are you worried about rising particle counts? I know you mention using distilled water, which the dynomight post that made me worried about ultrasonic humidifiers notes:
which is a big reduction, but elsewhere in the post they mention that ultrasonic humidifiers can raise exposure by 5x, which would still look like almost 2x particle exposure at the 18% reduction produced by distilled water. Did you see any increase in e.g. pm2.5 counts when running this?
Hmm, I’d been approximating particles from distilled water as ~0, but it sounds like it’s not that. I didn’t check pm2.5, sorry!