The Muc-Off Air Filter Cleaner is a state of the art, biodegradable cleaner which cleans and cares for your filter.Quickly, easily and gently removes oil, dirt and grimeFormulated to be ultra-safe on foam and gluesWater based and readily Biodegradable* formulaSolvent-freeNon-causticEasily washes off with waterThe Muc-Off Air Filter Cleaner rapidly breaks down the stickiness of oils, greases and any grime on all foam air filters. It's an easy, hassle free way to quickly clean your foam filter and ensures you get the maximum horsepower from your engine. It is made from a unique combination of active ingredients and is formulated to rip through any dirt and oil in a matter of seconds without damaging the foam or glue.Directions for use:Remove filter and shake off any excess dirtShake the can and pour cleaner into a container (enough to cover filter)Soak filter for 1 to 2 minutesWearing workshop gloves, massage the filter in cleanerNow squeeze the filter and put back in the cleaner (never