K & N Cleaning set for all K & N air cleaner

K & N air filters have a life-long warranty given by the producers. The filters should be checked regularly. A special emulsion is necessary for the cleaning and for the impregnation a special oil. Both are included in the delivery. The cleaning with cleaning solvent or similar solvents would destroy the air cleaner. Filters which are not or bad impregnated will be destroyed by outer factors.