Abstract: Portable gas delivery system intended for medical use. The gas delivery system has a gas cylinder with a bottle body and a gas flow controlling device. The gas cylinder body is partially covered by a first protective casing and the gas flow controlling device and/or the first protective covering are Partially covered with a second protective casing. A protective cowling also provides protection. Such protective casings may be joined together and have a disk shaped bottom portion to protect the bottom of the gas cylinder.

Abstract: The invention concerns a gas bottle in particular for medical use, comprising a generally cylindrical bottle body (1) comprising members (3) regulating gas output and optionally a protective covering (2) arranged around the members (3) regulating gas output. The invention is characterised in that the bottle body (1) is at least partly covered with at least a first protective casing (11), and the members (3) and/or the protective covering (2) are at least partly covered with at least a second protective casing (21). The invention also concerns a protective packaging for a gas bottle formed with a first protective casing (11) portion and a second protective casing (21) portion mutually integral and/or formed in a single piece, the first casing portion (11) comprising a disc-shaped base (12) to protect the base of the gas bottle.