Evaanix max air semi auto

Every evanix i have owned is powerful and accurate with heavy ammo. Air actuated semi auto is reliable but needs to be cleaned more regularly. Not necessarily the barrel but the air return path for actuation.
I have the Max Air II. Can you briefly describe that cleaning process? This is my first Air actuated semi and I'm totally unfamiliar with that process and how it's used for semi-auto other than likely related to how an AR15 works possibly!