Does anyone know how this air cooler works?

Question

http://www.homedepot.com/webapp/wcs/stores/servlet/ProductDisplay?storeId=10051&langId=-1&catalogId=10053&productId=100638370&N=10000003+90401

It is listed on the homedepot.com but there are no customer reviews. Any thoughts on this product?

Answer 1

It's an evaporative cooler.  It simply runs the air through some sort of cloth or filter or membrane that is kept wet from a pump and water reservoir inside.  You have to keep the reservoir full and clean of bacteria and algae.  If you live in a dry climate it will help a bit but if you live in a climate that is normally humid it really won't help a lot because the water can't evaporate very well to cool the air.