US Patent 7168629 Scuba gear sanitizing method

A method for sanitizing scuba diving equipment including aqua lungs, wet-suits, fins, caps and masks comprises exposing confined parts of the gear such as hoses, pressure regulators and mouthpieces to a pressurized flow of fluid using a fluid-conditioning spray gun adapted to mix a germicidal solution into a jet of water or other fluid carrier. The spray gun has a conical nozzle provided with a set of graduated, flexible, feather-edged disks or barbs that can hermetically mate with a number of scuba diving component apertures of different sizes and shapes.