Invented by Pranav Mokshmar, Vaayu chillers fill the gap between traditional coolers and expensive air conditioners. Vaayu Classic cools a room by up to 18 degrees using ice water – as opposed to regular desert coolers that drop temperatures by just 5 degrees. Using patented technology, a compressor chills the water in the cooler that is then circulated on the side pads. A thermostat gauges the temperature and automatically switches off the compressor once the water is icy enough. Such need-based consumption helps the appliance to save up to 90 times electricity as compared to traditional air conditioners.

The machine is eco-friendly and does not emit heat into the atmosphere, and can be operated using a smartphone or a remote control.