"A very cheap way to get cool mist, provided you commit to using distilled water."
The 'Filter-Free Ultrasonic' technology means the unit uses high-frequency vibrations to create a cool mist, which is quiet and energy-efficient. However, it also means any minerals or contaminants in your water are dispersed directly into your air.
This is a reasonable choice for short-term use, such as during a child's cold, where the low price is the main appeal. It is also suitable for buyers who will exclusively use distilled water to prevent mineral dust and are diligent about weekly cleaning.
Anyone with hard tap water should avoid this unless they plan to buy distilled water. Those looking for a low-maintenance, 'set it and forget it' appliance will be disappointed by the mandatory cleaning schedule.