The indoor evaporative air cooler and heater is multifunctional. It distributes cool air through the honeycomb cooling media while the dust filter cleanses the air. Its non-compressor system cools naturally, efficiently and inexpensively without power-hungry components. It is heated by PTC heater, high efficiency of conversion between electricity and heat, rapid heating. This evaporative air cooler, heater, humidifier, and fan is versatile, lightweight and economical. It can also be used as a air purifier because of its anion generator. The remote control allows you to easily change settings. And this air cooler and heater easily rolls from room to room for use anywhere in your house or officeFeatureCan be used as air cooler, heater, humidifier, fan, air purifierIdeal for using in home, office, dormitory and so onUtilizes a superb honeycomb cooling pad that ensures a high level of coolingIncrease temperature by efficient PTC heaterRemovable, washable filter prevents bacteria, dust and other air borne particlesAnion purifies and sterilizes air by generating negative ion8 hour timer, swing feature, 3 fan modes and speeds to customize your cooling2 ice-crystal boxes enhance cooling performanceUser-friendly LED control panel19.5' far-range remote control, receive at 60 degree wide angle4 caster wheels make it easy to move from room to roomSpecificationColor : As pics showNet weight : 17 lbsVoltage : 110V, 60HzAir flow: 334 CFMFan mode power : 75WHeating mode power : 2000W(High)/ 1000W(Low) Timer : 8 hourWater tank capacity : 7LFan mode : Normal/Natural/SleepingFan speed : Low/Middle/HighHeating temperature : Low/HighOverall dimension : 15’’ (L) x 11’’ (W) x 29’’ (H) Package includes : 1 x Air cooler & heater2 x Ice crystal box