AeronexR, San Diego, Calif., sold an Infinity gas purification system (GPSR) to Quantum Photonics, Jessup, Md., to purify nitrogen in the manufacturing process. The Infinity GPS-300-I (for inert gases) is used to provide a continuous supply of purified gas for contaminant-sensitive processes. It removes gaseous contaminants such as water, oxygen, carbon monoxide, carbon dioxide and hydrocarbons to sub ppb (part-per-billion) levels.