Hello,

If your looking for how to build your own Vortex Tube, the below link is a very good read.

http://ottobelden.blogspot.com/2009/09/diy-homemade-ranque-hilsch-vortex.html?showComment=1262300500566_AIe9_BE6O0o4x0XllEnn-URSUjx4QgGMYWUKIl8lE_yird4QdkkoV_FgdztmACLXm9g_M1ZR0Ds-hVqhi1ZY-eCIo9i3GH6nFbelDoRBbZzBUiaApRmjx9sb7mbf-nP40cZldMAelRtmf_swFDhkg_ghTotkI2s0bFQ_alNnOvzHD1tBrHFlLkgBZG1WtXVcfOO20ijNEkTTIMAN_PFvjsB3vBPp8gI7odwoc6dwdgbVHXtqAPzc_9W2UTy2q-iSc0vvpAbgbs3r#c689703382220069856

If you prefer to buy one, STREAMTEK has them for under $150 bucks at https://www.stream-tek.com/products/vortextubes/vortex-tube.php

--
Ray B.