- The industrial quality DryMist Fan™ is a high quality floor standing fan used for air cooling and heat-stress reduction. It has a Stainless Steel Fog Ring with 6 DryMist™ water cooling nozzles. These precision engineered nozzles generate an ultra-fine micro mist that Flash Evaporates directly into the air stream produced by the fan. Temperatures can be reduced by 10ºC or more on the hottest of days. This is the perfect evaporative water cooling system.