Here is a guide for you to clean lens of Your projector, examplified by BenQ projector.


  • Air Blower
  • Lens Pen
  • Lens Wipe
  • Microfiber Cloth or other soft cloths


1 Turn off your projector and cool it down at least 10 mins.

2 Pump air blower for several times and then use brush to remover dust.

3 Use leans wipe to remove greasy or finger print.

4 Use lens pen to clean lens surface from inside to outside.

4 Pump air blower again.

Please keep in mind that you can’t use alcohol, acid cleaner, solvent or abrasive pad to clean the lens.