They had a full page ad in today's USA Today. Near as I can tell, it uses blocks of ice to make cool air:
|
6. HOW EXACTLY DOES THE COOL SURGE WORK?
The Cool Surge is a work of engineering genius that blasts out ice cooled air but only uses the same electricity as a 60 Watt Light Bulb.
It's as easy to use as a baby's vaporizer and even includes the extra cooling power of 4 reusable glacier ice blocks. '
|
http://www.coolsurge.com/faq.cfm