Air Filter Cleaner Aem. Synthetic Air Filter Cleaner loosens and dissolves dirt and grime build up on synthetic filters so they can be rinsed clean with water. This cleaner is well-matched to AEM Dryflow air filters and other synthetic air filters. Engineered for AEM Dryflow air filters Quickly loosens dirt and dissolves grime Simply rinse filter with water after applying Brings air filter to like-new condition *By request/order.