- Is the 24-hour run time realistic?
- Only on the lowest mist setting. Owners report about 8 hours on a mid setting from the 0.5-gallon tank, so plan on refilling daily in normal use.
- Is it really quiet at 10 dB?
- It is quiet enough for a bedroom, but owners hear the motor, especially up close. The 10 dB rating is optimistic; expect a soft hum rather than silence.
- Does it need a filter?
- No. It is filter-free, so there is nothing to replace. Rinse the tank and base regularly and use the included cleaning tool to keep residue down.
- How big a room will it cover?
- It is rated for small rooms up to about 215 sq ft. In larger or open rooms the mist will not raise humidity noticeably.
- Is $38.77 at Amazon a good price?
- It is the best new price among 7 stores as of November 3, 2026. That is a reasonable price for a filter-free mini humidifier, though check the other stores for shipping costs.
- What comes in the box?
- The humidifier, its 0.5-gallon tank and a cleaning tool. No filter or replacement parts are needed.
- Where is the Honeywell Small Compact Ultrasonic Mini Cool Mist Humidifier cheapest?
- At Amazon, for $38.77, as of our latest check.
- What do buyers say about the Honeywell Small Compact Ultrasonic Mini Cool Mist Humidifier?
- Rated 4.5 out of 5 from 2 ratings. Buyers like: Works great; Happy with purchase; Bought to add humidity for plants.
- Where can I buy the Honeywell Small Compact Ultrasonic Mini Cool Mist Humidifier?
- 7 stores we checked sell it, including eBay, Walmart, Best Buy, Family Hardware, SIM Supply.