Easy to fill water or 4 ice crystals(attached in the package) in it to cooling the air fast. The lower water tank is equipped with drainage holes for easy cleaning of the water tank. NOTE: No exhaust air is generated with this device. There are 3 wind speed(Low/Medium/High) and 3 modes(Normal/Natural/Sleep Mode), the maximum wind speed of air outlet around 6.2m/s, it can meet your different needs and be used on different occasions. The Timer Function(1-7 H) allows you to set the machine's turn-off time in advance.Unit comes with the upgraded honeycomb cascade system and advanced cooling tech, and working with the 4xice crystals, Fychuo room air conditioner can fast cool air by powerful water cycle system. The fan blades can auto swing 90°(horizontal direction) or manually adjust 120° (vertical direction) to distribute the cold air throughout the room quickly with multi-angle, b. Ring you the best cool experience.