Hold the outlet funnel a few centimetres away from the surface to be cleaned and at an angle of approx. 45 degrees. For dry operation (air only), turn the toggle lever to the horizontal position. Press the “trigger” all the way down and move the SONAX PowerAir Clean slowly and in circling motions over the surface to be cleaned. Turn the black toggle lever to the vertical position to activate the inflow of (cleaning) liquid from the cup. We recommend using SONAX Interior Cleaner in a mixing ratio of 1:5. Do not use on screens and displays.