The Solar Chill™ Evaporative Cooler cools up to 300 square feet using just 38-52 Watts. It can be run direct from a single 70-90W solar PV panel, although we recommend deep cycle batteries for best performance. A 14" fan moves up to 1150 cubic feet of air per minute for serious relief from intense dry heat. This newer, improved model uses a thick 8" fluted media pad - the most efficient in the world - because more pad area means cooler air!
The Solar Chill DC Evaporative Cooler is made from rust-proof stainless steel. The media pad should last five years, with only minimal maintenance (water quality is a factor).