The multifunctional 3-in-1 air cooler will bring you a cool summer. With washable honeycomb cooling pad and dust filter, the air cooler can remove dust while increasing the moisture in the air. Ultimately, you can enjoy a cool and fresh space. When you turn on the fan mode, there are 3 modes (normal/ natural/ sleep) and 3 speeds (low/ medium/ high) for choice. You can also adjust the shutter horizontally 60° and vertically 90° for even coolness spread. Before going to bed, you can add 1.3gal water and put 2 iced boxes in the tank, then set the 15-hour timer and running mode in advance with the smart control panel or remote control (max remote distance: 16.5ft). The air cooler will shut off automatically and quietly (noise ≤ 58 dB) when time’s up. During sleep, the overheat protection will ensure the using safety.