- How long does one fill last?
- About 10 hours of runtime per fill, so it covers a night or a workday. Heavier mist settings shorten that.
- Does it need distilled water?
- Distilled or filtered water is recommended. Tap water leaves white mineral dust on furniture and speeds up buildup inside the unit.
- Does it shut off automatically?
- Yes. It powers down when the water level gets too low, which protects the ultrasonic plate.
- Is it good for a bedroom?
- Yes. It is quiet and the large tank means you rarely refill at night. The black body and portable size suit a nightstand or floor.
- Does it have warm mist or a humidity sensor?
- No. It is cool-mist only, with no built-in humidistat, so you control it manually.
- How do I clean it?
- Empty and rinse the tank regularly and descale the base with a vinegar and water soak. Do this more often with hard water.
- Where is the Homedics Portable Ultrasonic Humidifier cheapest?
- At Target, for $22.99, as of our latest check.