Lens Brite Anti Fog Lens Cleaner both cleans lenses and helps prevent fogging. 
Safe for all lenses.
Can be used to clean all types of lenses – scope lenses, binoculars, spotting scopes, Clarifiers or Verifiers.
For Clarifiers and Verifiers we suggest using a Lens Cleaning Swab (#501) with the Lens Brite Anti Fog Cleaner.