Abstract: An improved gas delivery system for a cryochamber that increases the efficiency, efficacy, and safety of cryotherapy treatments is disclosed. The system incorporates a high pressure cryogenic liquid source and a plurality of fluid discharge orifices for conveying fluid into the chamber. The orifices may further comprise atomizing nozzles, which eliminate the need for a heater in the system. The orifices are dispersed about the chamber and positioned to convey fluid either clockwise or counterclockwise about a central vertical axis of the chamber to promote cyclonic gas motion. The cryochamber may further comprise shielding that reduces the risks associated with inadvertent liquid discharge. The orifices may also be positioned at varying heights in the chamber and have varying diameters to facilitate targeted cryotherapy treatments. The improved gas delivery system enables the cryochamber to achieve the same or improved therapeutic benefits while consuming less cryogenic liquid per treatment and less energy.