http://bit.ly/1d9zta3 - Meech Vortex Tubes and Coolers convert compressed air into two airflows, one extremely hot the other extremely cold. They have no moving parts and can produce a drop in temperature up to 60°C below the compressed air temperature. Also available are Meech Cabinet Coolers used to provide a cold air source to stop cabinets overheating and Meech Coldstream Air Guns which are used to provide a cold air source in many spot cooling applications.