It can be tempting to just use isopropyl alcohol on a tissue to clean your dirty objectives or microscope prisms---don't do it! You'll get streaks and residue that will make the problem worse. Zeiss designed these wipes pre-moistened with the right solvent for the removal of greases and oils from flux residue or accidental fingerprints. These wipes are the ones we used in our "How to Clean Your Microscope" video on iPad Rehab YouTube channel.