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A temperature control garment arranged to be worn on a user's torso including a bladder defining a chamber for receiving a supply of gas, the bladder including a back portion which is arranged to overlie at least a portion of a user's back. An arrangement of holes is provided in the bladder for dire

A temperature control garment arranged to be worn on a user's torso including a bladder defining a chamber for receiving a supply of gas, the bladder including a back portion which is arranged to overlie at least a portion of a user's back. An arrangement of holes is provided in the bladder for directing gas supplied to the chamber towards the user's body so as to modify the temperature of the user's body. The garment also includes a breathing duct coupled to the bladder for receiving a supply of gas, the breathing duct having at least one duct outlet for delivering the gas supplied to the breathing duct to the user.

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1. A temperature control garment arranged to be worn on a user's torso, comprising: a flexible bladder defining a chamber for receiving a supply of gas from a source of compressed breathable gas, the flexible bladder comprising at least a back portion, the back portion being arranged to overlie at l

1. A temperature control garment arranged to be worn on a user's torso, comprising: a flexible bladder defining a chamber for receiving a supply of gas from a source of compressed breathable gas, the flexible bladder comprising at least a back portion, the back portion being arranged to overlie at least a portion of the user's back;an arrangement of holes provided in a first side of the flexible bladder for directing gas supplied to the chamber towards the user's body so as to modify the temperature of the user's body;a diffuser layer separate from the flexible bladder and fixedly coupled to the first side of the flexible bladder;a flexible support coupled to a second side of the flexible bladder; anda breathing duct fixedly coupled to the flexible support for receiving a supply of gas from the source of compressed breathable gas, the breathing duct having at least one duct outlet for delivering the gas supplied to the breathing duct to the user, whereby the diffuser layer is positioned between the user's back and the flexible bladder, and whereby the diffuser layer is configured to direct gas to the back of the user. 2. A garment according to claim 1, wherein the breathing duct is flexible. 3. A garment according to claim 1, wherein the breathing duct longitudinally extends from a lower portion to an upper portion. 4. A garment according to claim 1, wherein the breathing duct is arranged to extend over the left and/or right shoulder of the user. 5. A garment according to claim 1, wherein each duct outlet is arranged to direct gas towards the user's face. 6. A garment according to claim 1, further comprising a manifold having a manifold inlet for receiving a supply of gas, and a first outlet in fluid communication with the chamber for supplying gas to the chamber. 7. A garment according to claim 6, wherein the manifold further comprises a second outlet in fluid communication with the breathing duct for supplying gas to the breathing duct. 8. A gall lent according to claim 6, wherein the manifold inlet is provided with a gas connector for connecting to a flexible conduit. 9. A garment according to claim 6, wherein the manifold comprises a gas distributor disposed within the chamber. 10. A garment according to claim 9, wherein the gas distributor extends transversely, and wherein the manifold includes a plurality of manifold chamber outlets which are transversely spaced. 11. A garment according to claim 6, further comprising at least one distribution conduit disposed within the chamber and in fluid communication with the first outlet, the distribution conduit extending from a distribution conduit inlet at lower region of the chamber to distribution conduit outlet at an upper region of the chamber. 12. A garment according to claim 11, wherein the at least one distribution conduit comprises a plurality of distribution conduits. 13. A garment according to claim 1, wherein the flexible bladder is provided on an inner side of the flexible support. 14. A garment according to claim 1, wherein the flexible bladder is coextensive with the flexible support. 15. A garment according to claim 1, wherein the breathing duct is attached to an outer surface of the flexible support. 16. Personal protective equipment, comprising: a temperature control garment arranged to be worn on a user's torso having: a flexible bladder defining a chamber for receiving a supply of gas from a source of compressed breathable gas, the flexible bladder comprising at least a back portion, the back portion being arranged to overlie at least a portion of a user's back;an arrangement of holes provided in a first side of the flexible bladder for directing gas supplied to the chamber towards the user's body so as to modify the temperature of the user's body;a diffuser layer fixedly coupled to the first side of the flexible bladder;a flexible support coupled to a second side of the flexible bladder; anda breathing duct fixedly coupled to the flexible support for receiving a supply of gas from the source of compressed breathable gas, the breathing duct having at least one duct outlet for delivering the gas supplied to the breathing duct to the user; whereby the diffuser layer is positioned between the user's back and the flexible bladder, and whereby the diffuser layer is configured to direct gas to the back of the user; anda protective garment arranged to be worn over the temperature control garment. 17. Personal protective equipment according to claim 16, wherein the temperature control garment is arranged to cover at least a user's torso. 18. Personal protective equipment according to claim 16, further comprising a protective suit or jacket having a hood portion which overlies the temperature control garment, the hood portion being arranged to cover the user's head. 19. A temperature control garment arranged to be worn on a user's torso, comprising: left and right adjustable shoulder straps;a flexible support having at least a flexible back panel;a flexible bladder attached to the inner surface of the flexible support, the flexible bladder defining a bladder chamber for receiving a supply of gas from a source of compressed breathable gas and having at least a back portion, said back portion being arranged to overlie at least a portion of a user's back;an arrangement of holes provided in a first side of the flexible bladder for directing the compressed breathable gas supplied to the chamber towards the user's body so as to modify the temperature of the user's body; the arrangement of holes being concentrated in one or more targeted temperature control regions;a diffuser layer fixedly coupled to the first side of the flexible bladder;a flexible support coupled to a second side of the flexible bladder; anda flexible breathing duct fixedly coupled to the flexible support for receiving the compressed breathable gas, the flexible breathing duct having at least one duct outlet for discharging the compressed breathable gas supplied to the flexible breathing duct into the surroundings, whereby the diffuser layer is positioned between the user's back and the flexible bladder, and whereby the diffuser layer is configured to direct gas to the back of the user.