Abstract: A tubing-illumination apparatus for illuminating oxygen supply tubing. The apparatus includes an electroluminescent wire that is wrapped around an oxygen supply tubing in a spiraling configuration to extend along the length thereof. Clips with a minor and a major channel extending therethrough are provided for retaining the arrangement of the wire and the tubing. The minor channel receives and retains the wire and the major channel receives and retains the tubing in a parallel, side-by-side relation. The electroluminescent wire provides illumination of the tubing continuously along the length thereof. The clips are removable from the tubing to enable replacement of the tubing. The electroluminescent wire may be coupled to a control module such that the wire may be illuminated in relation to operational conditions of an oxygen supply apparatus.