A sterile protection attachment for a tip of a liquid-handling device, including a mount for fastening the sterile protection attachment to the liquid-handling device, a protective bell arranged in the mount and having an inner cavity, and a supply line for sterile air connected to the inner cavity, in which the protective bell has an opening at a lower end and has a receiver for the tip at an upper side opposite the lower end and within which the tip can be flushing with sterile air.