D-Factor is an extra strong, heavy duty cleaner. Detergent-based formula rapidly removes grime, oil, grease and dust. Low foaming action cleans grease and dust from surfaces which are normally inaccessible. D-Factor is biodegradable and can be used for cleaning electronic and permanent air filters and all mechanical equipment. D-Factor’s maximum degreasing, high strength cleaning formula is self-rinsing and suitable for both condenser and evaporator coils.