The Otolift Air stairlift is built very compact and requires only a single rail. Moreover, this rail is also very slim. With a diameter of 6 centimeters, it is even the thinnest single rail for stairlifts in the world. The seat of the Otolift Air is extra compactly built. This allows the Otolift Air to be placed excellently on narrow, steep stairs while still keeping the walkable part of the stairs free. Because the Air is placed along the inner curve of the stairs, the handrail can remain in place. This also applies to a used Otolift Air; we can customize it just as neatly for your stairs.