# VSA (vacuum swing adsorption)

A related process that works at low pressure and releases the nitrogen under vacuum. The process inside ULTRAOX VSA.

## Sources

- [Ultra Controlo, Medical gas answers: glossary](https://www.ultracontrolo.com/medical-gas-answers#term-vsa)

Reviewed: 2026-10-22. Ultra Controlo engineering. https://library.ultracontrolo.com/glossary/vsa/