This is a video where I am starting a series into high performance computer fans these are used and all sorts of situations from robotic manufacturing equipment amplifiers and sound systems everywhere in the world where I small box tubeaxial fan is used these are the Style. And this video where you're starting out with a Delta that it was in a harsh Food Service environment the show how tough and clogged high performance fans can get and this is only a midrange of the particular size. . .