Air is drawn in at the base of the machine. It is accelerated through a 2.5mm aperture, which creates an annular jet of air that passes over an airfoil-shaped ramp, channeling its direction. Surrounding air is drawn into the airflow, amplifying it. This is called inducement and entrainment. Unlike with conventional fan heaters or fans, there are no chopping blades, so there’s no buffeting. Airflow is smooth.