AIR WASHER
is often used as an economical cooling unit. The air washer is also used in industrial applications that may have a relatively dirty air stream and do not lend themselves to a conventional coil system.
Product description
http://havagardan.com/1392/10/19/post-8/%D8%A7%DB%8C%D8%B1-%D9%88%D8%A7%D8%B4%D8%B1