The evaporative air cooler uses a submersible motor and a Dura-cool filter pad. It comes with an 8-hour timer and 3 speed settings. A water-level alarm system is equipped as a reminder to re-fill water and a warning for water leakage. The built-in negative ion generator helps reduce odor and revitalize the air. This air cooler makes a versatile and elegant addition for supplying cool air to effectively lower a room's temperature.