This inhaler facilitates 60 pre-dosed medicine units. Before each inhalation one medicine dose will be released. If you do not inhale this dose, it will be removed before you can release the next dose. This removed dose stays in the inhaler. All air that is inhaled comes straight from outside the inhaler and flows through special channels and will only mix with the medicine from one dose. This important improvement ensures that no old drug residues will be inhaled. This inhaler is so unique that it is patent protected WO2010133323