The present invention relates to a kind of coolings or heating to invest circulation of fluid, and more particularly, to a kind of changes in temperature vest, which improve the thermals efficiency by uniformly transferring the vest of the vest front of the medium bag container of cold air or heating. It is cold or it is warm invest circulation of fluid, medium can be accommodated, comprising: hose, these are provided at regular intervals in vest and be to fill liquid; Fluid circuit unit provides one kind makes fluid by being connected to end hose in vest and forcibly; And controller, the device for control. ;The 2014 of copyright KIPO submissions
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