#$%^&*AU2019253777A120191114.pdf#####ABSTRACT A limb suitable for use in a medical circuit, the limb comprising: a first opening configured to receive a gas at a first temperature and a first relative humidity； a second opening configured to allow the gas to exit the limb, the gas having a second temperature and a second relative humidity； a plurality of conduits each comprising a first end proximal the first opening, a second end proximal the second opening, and a wall extending between the end and the second end and defining a lumen within through which, when in use, gas flows in the direction of the first end toward the second end, and wherein at least a part of said wall comprises a breathable material configured to allow transmission of water vapor but substantially prevent transmission of liquid water.WO 2014/142680 PCT/NZ2014/000039 1/13 ciZ 00L
