HAVA is a portable evaporative cooler which uses a circular water screen to catch wind and cool the home through evaporation. The design is meant to eliminate the need for electricity as the circular windmill like design removes the need for a water pump. All the portions of the design are also removable to allow for different sizes and for easy cleaning.

The water from the reservoir is carried in the water screen in small amounts as the screen is turned by the wind. This then allows the water to fall down the screen at the top and evaporate into the room. This evaporation cools the room and also adds moisture. Along side the cooling effects, HAVA brings a calming visual effect to the home through water and light.