These vortex tubes from EXAIR provide what is a maintenance free, reliable and low cost solution for a variety of spot cooling problems in the industry. Independent tests in the laboratories have now certified that these vortex tubes from EXAIR meet the rigorous safety, environmental and health standards that are required to attain the CE certification from the European Union. These vortex tubes can convert an ordinary compressed air supply of 80-100 PSIG into a temperature adjustable continuous air stream. The temperature of the continuous air stream can be cooled down to -50 °F or -46°C. The cooling capability of these spot coolers is up to 10,200Btu/hr. Corrosion resistant and durable stainless steel is used to make these vortex tubes from EXAIR. These tubes do not have any moving parts.