Dax Air Cleaner Detergent is an extra-strong liquid detergent specifically designed for cleaning electronic air filters. Containing surface-active agents, grease solvents, alkaline cleaners, corrosion inhibitors and water conditioners Dax rapidly cleans dirt, grease, dust and tars from electronic concentrations. This detergent comes in a ready-to-use 1 Liter sprayer. DIRECTIONS FOR USE 1. Rinse the collecting cells and prefilters with hot water. Hold spray applicator approximately 5" away from the collecting cells and prefilters and spray thoroughly from all sides. 2. Let stand for 5 minutes. Rinse well with hot water. If dirt remails, soak cell in a solution of Dax detergent and hot water for 30 minutes. Rinse well. 3. Tip collecting cell on 45 degree angle and allow cell to dry completely. If arcing occurs when cell is placed back in unit, turn air cleaner off, remove cell and allow more time for drying.