Professional Cleaners Glass Cleaner Removes Fingerprints, Dirt, Grease And Other Smudges While Leaving Behind Nothing But Streak-Free, Spotless Shine. Ammonia-Free Formula Can Be Used On Windows, Mirrors, Shower Doors And Other Glass Surfaces. Simply Spray Directly Onto Glass Surfaces And Wipe Thoroughly With Clean, Soft And Lint-Free Cloths Or Towels.