Loved the small size and quiet motor of this humidifier, but I couldn’t tell how well this unit actually worked.  I left it in our small bathroom running for 8.5 hours, and while I could tell the motor was running it didn’t use any water and I couldn’t feel any difference in humidity.

I’m used to the cool mist type of humidifiers where you see the mist rising into the air as it operates, and you add water throughout the day.