Feature: 1. Filter Screen Purification: Air cooler integrated with fan, purification, cooling and humidifier. Built in multiple water absorption filter screen, effectively filter the fine dust particles in the air, and make it safer and healthier to use. 2. 470mL Water Tank: Integrated 470mL large capacity water tank can be used for a long time after being filled with water, avoiding the trouble of frequent water filling. You can also fill it with ice cubes for better cooling effect. 3. USB Charging: Desk air conditioner fan adopts USB interface, can be charged by 2A and above adapters, mobile power supply, car charging USB socket, etc. Pull out design, more humanized and convenient for cleaning. 4. Adjustable Wind Speed: Evaporative air cooler has a mechanical knob to adjust the wind speed. Low noise while operating, bring you quiet and comfortable cooling environment. 5. Applicable Scenario: Portable space air conditioner is compact in size and space saving, suitable for office, bedroom, living room, kitchen, etc. Specification: Item Type: Evaporative Air Cooler Material: ABS Gross Weight: 952g / 33.6oz Color: White Working Current: 2A Input Voltage: 5V 2A Water Tank Capacity: 470ml Noise: 50db at two gear wind speed Rated Power: 6W. Package List: 1 x Evaporative Air Cooler1 x USB Cable