Thanks to improvements on the patented Vortex-Assisted-Design system and bypass geometry, the Fusion 52X regulator establishes a new standard in breathing comfort. The two airflow settings allow for very natural and effortless breathing on the one hand and provide an additional airflow boost under strenuous situations and in more demanding conditions on the other. The toggle switch is integrated into the design of the second stage and is intuitive and secure in operation. With its all-metal case, the large membrane and the innovative design of the purge button, the Fusion 52X is a universal regulator for all diving conditions.