Assail-A-Cell air purifier cell cleaner is the fast, easy, effective way to clean the cell plates on your Oreck Air Purifier. Aggressive, high foaming detergent quickly and easily washes away dirt, grease, oil, tobacco, and other residue and deposits. It won't break down metals and won't harm plastics. Just spray on and rinse off. Accept no substitutes for keeping your Oreck Air Purifier in tip top shape!