Environmental relay conduit
An environmental relay conduit was a component inside the construction of an  sickbay. It could be used to spread gaseous chemicals throughout the ship and was operated from the vessel's environmental controls console.

In 2153, an environmental relay conduit was used by Doctor Phlox to disperse a particular gas throughout , attaching a vial of the chemical to the conduit. ()

Life support technology
Memory Alpha articles named from scripts