# Skid-mounted oxygen plant

A skid-mounted oxygen plant is, in WHO's technical specifications for oxygen generator plants (December 2024), a plant that comes pre-assembled on a skid, one of three delivery options alongside components shipped for on-site assembly and plants pre-housed in a container.

WHO's 2024 specification lists the three ways a plant can be delivered: disassembled for on-site assembly, pre-assembled and skid-mounted, or pre-assembled and pre-housed in a fit-for-purpose container (a containerized plant). For transport, it asks that a shipping crate encases the skid or that there is a barrier to access to components. WHO's Foundations of medical oxygen systems (17 February 2023) notes that containerized and skid-mounted solutions facilitate smoother installation but are not feasible for bigger sizes, typically above 30 Nm³/h production capacity.

UNDP's REQ-OXY-001 (effective 1 January 2025) says a PSA plant can be built on-site, skid-mounted or containerized, and, among the factors for adapting its illustrative implementation timeline, lists infrastructure requirements such as new housing for skid-mounted or built-on-site plants versus containerized plants. PATH and CHAI (July 2021) add that a PSA plant, if skid-mounted, should be in a well-ventilated housing, for security and protection from adverse weather conditions.

The [ULTRACON](https://library.ultracontrolo.com/products/ultracon/) datasheet states that container and skid-mounted solutions are available, and the datasheet of the industrial [ULTRAOX VSA](https://library.ultracontrolo.com/products/ultraox-vsa/) describes a skid or container system. See also [containerised versus plant-room oxygen plants](https://library.ultracontrolo.com/compare/containerised-vs-plant-room-oxygen-plant/).

## Sources

- [WHO, Technical specifications for health facility based medical oxygen systems (31 December 2024), oxygen generator plant table, lines 16, 18 and 33](https://iris.who.int/server/api/core/bitstreams/ff437601-add3-44c8-8149-b85f0cdb2b52/content)
- [WHO, Foundations of medical oxygen systems (17 February 2023), section 2.3](https://iris.who.int/server/api/core/bitstreams/4ad6f5fd-089e-4142-8439-b64e98d816d8/content)
- [UNDP, REQ-OXY-001 v01 (effective 1 January 2025), sections 6.2 and 8](https://healthimplementation.undp.org/wp-content/uploads/2025/01/REQ-OXY-001-v01-UNDP-TECHNICAL-REGULATORY-REQUIREMENTS-FOR-OXYGEN-PLANTS.pdf)
- [PATH and CHAI, Oxygen Generation and Storage: Pressure/Vacuum Swing Adsorption Plant (July 2021)](https://media.path.org/documents/O2_generation_and_storage_PSA_VSA_v1.pdf)
- [ULTRACON datasheet, p. 2](https://www.ultracontrolo.com/products/ultracon)
- [ULTRAOX VSA datasheet, p. 2](https://www.ultracontrolo.com/products/ultraox-vsa)

Reviewed: 2026-10-23. Ultra Controlo engineering. https://library.ultracontrolo.com/glossary/skid-mounted-oxygen-plant/