machines and devices, and parts thereof, for generating, purifying, mixing, and dispensing of breathing gasses for use in pressurized portable containers for use in underwater environments, namely, ultra-pure gas filtration systems comprised of gas inlet and outlet valves, pressure regulating valves, humidity sensors and indicators, pressure sensors and indicators, gas filtering chambers, tubing, fittings, and hoses, gas blending panels comprised of gauges, valves, tubing, fittings, and hoses, pressure swing absorption systems comprised of chemical sieve beds, oxygen injection continuous blending systems comprised of mixing chambers, pressure regulators, flow meters, gauge valves, tubing fittings, and hoses, oxygen generating systems comprised of air intake valves, gas feeder lines, gas absorption chambers, check valves, tubing, fittings and hoses, portable final filter systems comprised of gas intake and outlet valves, pressure valves, gas filtering chambers, moisture separators, tubing, fittings, and hoses

machines and devices, and parts thereof, for generating, purifying, mixing, and dispensing of breathing gases for use in pressurized portable containers for use in underwater environments, namely, oxygen analyzers not for medical purposes, helium analyzers not for medical purposes, oxygen sensors for measuring oxygen concentration, visual moisture indicators, portable gas containers in the nature cylinders for the storage and transportation of breathing gasses including air, helium, and nitrogen, analog gas pressure gauges, digital gas pressure gauges, electronic visual moisture indicators, back-pressure regulators for filtration systems, gas filtration cartridges for Self-Contained-Breathing-Apparatus and Self-Contained-Underwater-Breathing-Apparatus, unloader-valves, check-valves for outlets of breathing apparatus