Genesis Blu Fusion Bromine GeneratorGenesis Blu Fusion Automatic Bromine Generator Blu Fusion Bromine Generators are the industry leading automatic bromine generating system for hot tubs and spas. Instead of adding bromine tablets to your hot tub, the Isis Bromine Generator will automatically produce pure bromine in your hot tub automatically. How does a bromine generator work? Bromine Generators work the same way chlorine generators or commonly known as salt pools or salt generators