Perfect for areas that central air conditioners cant reach or for an area that has a high sun load. Unlike a fan that blows hot air our air coolers utilizes ice and water to cool a personal space up to 12 F cooler than any regular fan. Built-in Ionizer optional.Features and Functions: With remote control10L water tank capacity Photocatalysis filterThree air speeds: H / M / L Sleep modeTimer: from 0.5 ~ 7.5 hours settingIonizer to puify air