Our evaporative air cooler does not require power-hungry components like compressors. The low power consumption saves energy bills and energy compared to using air conditioners. The air cooler creates a cool breeze, like the refreshing breeze you feel by a lake, offering gentle cooling without that headache-producing wind. If you prefer gentle humidity over coolness, you can add water into the water tank for humidification. There are also 2 ice boxes for you to enjoy air conditioning cooling on hot summer days. Simply choose from 3 speeds and 3 modes with the top-mounted buttons, including a whisper-quiet sleep mode for lighter sleepers. This portable air cooler is ideal for home, bedroom, office, dorm, etc.