A drying apparatus for a medical device such as an endoscope valve comprises an enclosure 1 configured to house and retain at least one such device. The enclosure includes an air inlet 14 and at least one air outlet. A connection port 16 is arranged to connect the inlet to an air supply source, which may be pressurised, such that air that is supplied to the connection port flows through the air inlet into the housing. The at least one air outlet is arranged to allow air to flow out of the housing. There may be air entrainment means between the port and inlet to create a Venturi effect in order to draw in atmospheric air and increase the flow mass. The housing may be able to be opened and closed to insert devices, and locked permanently, with a frangible portion allowing re-opening only when broken.
