The video demonstrates how to prevent and disinfect the air‑conditioning system in a Volvo S60, using Lavr air‑conditioner cleaner and a FILTRON K1126A cabin filter. The procedure includes cleaning the air conditioner and replacing the cabin filter, though prevention can be done without dismantling the filter. After the work, the car smells pleasantly of menthol and feels fresh. The video concludes with a discussion of programming the recirculation button.