Air Duct is used for cleaning wheat, barley, legumes, soybean. The machine performs the separation of all kinds of light materials that differ from cereal grains in terms of aerodynamic properties: garbage, straw and spike fragments, various seeds, peeled bark and dust from the product by means of air flow. The illumination created by the window ensures that the separation can be seen clearly and thus all kinds of weather adjustments can be made. Manufactured in two types, the one with vibro motor is generally used with the Shell Peeler and the one without motor is used with the Garbage Purifier.