Product Details: Crompton's high performance portable desert air cooler with high density honey comb cooling pads and humidity control with low sound Technical Specifications: Capacity 65 L; Air delivery 5500 CMH; Power 200 W; Operating voltage 230 V; Suitable for upto 650 sq. ft.Empty Tank Alarm : No. with double ball bearing Auto Fill & High Tank Capacity: The air cooler comes with 65L tank capacity which allows you to experience cool air for a long time while the auto fill allows continuous water supply. Humidity control & Auto-drain: Humidity control help to maintain the required humidity in atmosphere; while auto-drain help to drain out water from the tank 4-way Power Air Delivery: With a powerful air delivery of 5500 m3/hr, Optimus 65 air cooler is suitable for up to 650 Sq. Ft. room size. which helps to keep the room cool & refreshing for a long time. Inverter Compatible: Operating at 200-Watt, Optimus 65 comes with inverter compatibility for uninterrupted cooling allowing you to experience cool air even during power cut. Also, being Energy Efficient Ice Chamber & High-Density Honeycomb Pads: Equipped with an wide ice chamber and high-density honeycomb pads , the cooler ensures to throw cool air with a boost of ice like cooling and superior comfort for a longer period.