The simple structure of the AIR CUBE makes it possible to attach it to all toilets and toilet bowls and to install it very easily. The inner flushing rim is not touched. This means that rimless toilets and those with a soft-close mechanism – including those from well-known companies such as Villeroy and Boch, Keramag and Duravit – are ideal for easy installation. Installation is only not possible with Turkish and Afghan toilets, as well as sanitary facilities of a comparable design.