It works by blowing the air over chilly piping and afterwards a cool 'cooling agent' liquid which will change into a gas when it takes in the heat from the air. http://www.secretsearchenginelabs.com/add-url.php?subtime=1740660587&newurl=https://gaiaathome.eu/gaiaathome/show_user.php%3Fuserid%3D643720