Netel | Automatic Hydrogen Gas Generator Hydrogen generators provide an onsite supply of hydrogen gas, eliminating the need for gas cylinders. Hydrogen gas can be bulky and requires special cylinder storage space. They provide ultra-hydrogen gas. The NH Series Hydrogen Generator has been used in a wide variety of applications, such as general industrial, military, and wastewater treatment, and especially in laboratory gas chromatography. NH Hydrogen Generators employ the most advanced velum separation technology for the electrolytic production of hydrogen gas.Easy to operate, safe and reliable, generating hydrogen through electrolyzing pure water, switching power on to produce gas. High reliability, easy to maintain. Match with all kinds of GC.