Cleaning for Oxygen Service (CFOS)

Components used in oxygen-enriched environments must meet strict cleanliness requirements — even trace amounts of hydrocarbon contamination or particulates can ignite in high-pressure oxygen, creating catastrophic risk. Cleaning for Oxygen Service (CFOS) is a specialized process designed to eliminate this risk.

Pure Source performs oxygen service cleaning to CGA G-4.1, the governing standard for cleaning of equipment used in oxygen service. Our process removes oils, greases, particulates, and other contaminants using approved cleaning agents and verified rinse procedures.

After cleaning, parts are visually inspected under white light and can be tested for residual contamination. We provide a certificate of cleanliness and package parts in oxygen-compatible materials to prevent recontamination during transport and storage.