[kccqzy]

Distilled water isn’t strictly necessary. I use mine with purified water with a reverse osmosis purifier. I periodically test the TDS of the water to confirm it is low. It’s fine.

[piskov]

I’ve run dyson ultrasonic humidifiers for a few years. The whole appartment was in white dust.

Especially evident on some black leather bags in the wardrobe.

[kccqzy]

You can buy a cheap tester for TDS (total dissolved solids) for <$20. Test the water before pouring it into any ultrasonic humidifier.

[piskov]

I just switched to evaporative ones like smartmi I’ve mentioned.