Blue Sky cuts through tough dirty films and removes smears, fingerprints, bugs and other soils from glass and other hard surfaces. Leaves all surfaces clean and residue free. Blue Sky is an ammoniated glass cleaner that penetrates and dissolves smears, smoke film, insects, soil, finger marks and food stains from mirrors, windows, windshields chrome and other reflective surfaces. Leaves surfaces clean and glistening. Dries fast-no unsightly streaks or smears. It is USDA Authorized for use on all surfaces clean and inedible product processing areas, non-processing areas and/or exterior areas