A cleaning product specifically designed for use on all foam and pleated hard air filters. This product is user friendly, easy to use, fast acting two step spray and rinse process, filter cleaner that packs a punch. Filter Cleaner will thoroughly cut through oil, dirt, grease and general grime to give your air filter a breath of fresh air. This product will leave your foam air filter looking brand new. Filter Cleaner is biodegradable, phosphate free, non-toxic and non-corrosive. Most importantly this product is NON-FLAMMABLE. It is safe for use on all types of foam or pleated air filters.