Dirty air filters can hinder engine performance and fuel economy. Fortunately, UNI offers a quality cleaning spray that enables you to wash and re-use your foam filters for years! Many motorcycles, ATVs, and snowmobiles utilize open-cell polyurethane foam filters to trap dirt and dust particles before they can damage the engine. When it's time for routine maintenance, simply remove your air filter, and spray both sides with UNI foam filter cleaner. Work it into the foam, and after a few minutes of saturation, simply rinse the filter in soapy water—and then fresh water. This will remove the dirt and filter oils, restoring the foam to a nearly-new appearance. Blot excess dampness and allow your filter to dry before re-oiling and installing on your powersports equipment. This cleaner is fully biodegradable.