It is inevitable your canopy will get dirty. The material used is normally very simple to clean but if you get a stubborn spot, contact the manufacturer to find out if they sell a spot cleaner or have advice for you to remove the stain. Normally plain ol' soap and water with some elbow grease added will do the trick. Once the canopy has been cleaned it is very important to completely dry the canopy top. Any wet spots will cause mold too grow and the cleaning process will be very difficult.