Lüftungskanal is an Android application developed by Andreas Mengele, which falls under the Utilities & Tools category. The app is designed to calculate the billing area of ventilation channels and fittings quickly. The app is equipped with the calculation of various ventilation components such as air ducts, bends, transitions, floor ducts, T-pieces, and trousers.

The app allows users to store ventilation components with position numbers and air type, which can be sent via email. Moreover, the app is optimized for tablet use. In the next update, the developer plans to add the use of letters in the position numbers and the export of components in CSV and XLS formats. However, it should be noted that the app is entirely free and available for download on the Google Play Store.

For any feedback or issues, please contact the developer via email.