🚀 go-pugleaf

Yes, it's interesting how ultrasonic humidifiers work, but are they
good for you?

Unlike the old steam vaporizers, they don't boil the water - so whatever
is growing in that water just gets thrown into the air, and eventually
winds up in your lungs.

I don't know how effective high-frequency sound is at killing bacteria,
and how much of the atomized water has been subjected to the high-amplitude
vibration.

It would be interesting to let some tap water sit in one of these for a
few days and then place a microscope slide in the air stream and look for bugs.
I haven't done this, because I wouldn't buy the vaporizer.

I'm concerned that some of the people who buy such a vaporizer for their
colds could get pnumonia from the vaporizer. I'd like to hear more about
this from someone who has studied it.
						Bruce Perens
						bp@pixar