http://nexflowair.com/mini_spot_cooler.php Frigid-X™ - Mini Spot Cooler - Compressed air enters at point (A) into the vortex tube component of the mini spot cooler. The vortex tube splits the compressed air into a cold (B) and hot (C) stream of air. The hot air from the vortex tube is vented to the atmosphere at point (D). Cold air enters into the optional muffler (E) and then distributed through the hose distribution kit (F) and onto the item being cooled. A strong magnet (G) holds the mini spot cooler in place.