An aluminium blister strip for the powder inside the inhaler based on a novel seal layer between its Formpack® base and blister lid foil. The blister strip ensures a longer shelf life through excellent moisture protection, and improves release of the powder from the cavity. It also improves performance during transportation and release of the powder from the cavity. By removing the strip in the feedback window, patients can check whether they have taken the prescribed number of inhalations per day. AirFluSal Forspiro is a very complex device and all the components had to be carefully combined to achieve the required performance. The protection of the active ingredient is entirely due to the innovative use of the aluminum foil in the blister strip.
