alt Hacker News> On a tangent note: don’t use ultrasonic humidifiers. Unless distilled water is used, they create a shit-ton of pm2.5 particles.
Not according to my uHoo air quality monitor. I have had one running a few feet from the monitor for over a week and there hasn't been any notable increase in PM2.5 particles.
Replies
Elucalidavah • last Saturday at 5:51 AM
> any notable increase in PM2.5 particles
What's your PM2.5 baseline, and did you measure TDS in the water?
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kjkjadksj • last Saturday at 8:12 PM
The ones I had for a bit basically fogged out the apartment immediately and left white (i’m guessing salt) deposits all over everything. I know you are supposed to use distilled but it’s cost prohibitive at the rate these blow through water unless you also have a home distillery.
Last time I checked (brought my sensor to the office to one room with ultrasonic) it showed 101/105 ug/m3 for pm2.5/pm10
In the next room (where there were none) it was 6.
Depends on the water, I guess.