Atmospheric recycle and processing subsystem
The atmospheric recycle and processing subsystem was a subsystem of the life support system. Aboard the  starships, there were at least two of these subsystems.

In 2368, after the computer systems of the  were disrupted by a energy wave from a Satarran starship, Geordi La Forge accessed the basic system directories of the Engineering Department. According to the department, the atmopsheric recycle and processing subsystems had nominal function. ()
Life support technology