- Wet lens paper with filtered water and rub it gently over the surface of the ferrule. Repeat with a wipe intended for delicate tasks to blot up excess water.
- Do not use isopropyl alcohol or acetone.
- Hook up the connector or put the cap back on.
- For male connectors, clean the ferrule by inserting the tissue between the guide pin
Cassettes and MPO connector cleaners also yield acceptable results.
Before you inspect a connector, always make sure the light source is turned off.