1. Top filling: there is no need to move the tank to refill water. It can reduce the risk of spills and tank breakage.2. 4.2L: there is no need to refill water frequently. The machine can be used continuously for almost one day at the highest setting.3. Easy operation： there is only one rotary switch in the front, no other switches. The front knob controls the on/off function as well as adjusts the flow of fog. 4. Dry-run protection: When the tank is short of water, the indicator light will change from blue to red, and the machine will automatically stop working. 5. Low noise: super quiet
Comparison between the two humidifiers:
