I've got an ultrasonic humidifier. I found that running it for a few hours with Brita filtered water made my whole room full of white dust. So I started using o

I've got an ultrasonic humidifier. I found that running it for a few hours with Brita filtered water made my whole room full of white dust. So I started using only distilled water. Since getting distilled water means I have to walk a few blocks and refill a 10 liter container every two days, I'll probably not buy an ultrasonic humidifier in the future.