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In this series, Brian changed both the level of air pressure and the fan air-knob opening to change the balance of air between the air tip and the fan-shaping air horns. When the pressure is set correctly, the droplet size is good (fine); then, as the fan control knob is opened, the air, diverted to the air horns, robs from the atomizing air, and consequently, the droplet size increases, becoming more coarse. The conclusion is that the amount of incoming air will have to be increased in order to maintain the same air pressure-and, as a result, optimum droplet size. View Related Article
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