The document provides step-by-step instructions for cleaning and maintaining a dental isolation adapter. It describes disassembling the device by removing the mouthpiece, control head, vacuum levers, and separating the upper and lower halves of the control head. It then explains cleaning the suction channels, inspecting and lubricating the o-rings, and reassembling the device by reattaching the vacuum levers, control head halves and control head to the coupler. The goal is to properly disinfect between patients to avoid cross-contamination.