You
need to clean the projector's air filters in the following
situations:
- The filter
or vents get dusty.
- You see a
message telling you to clean it.
- The
projector's Filter light flashes orange.
Note: The
projector has one air filter on the front and two on the sides. The
illustrations here show cleaning the air filter on the front, but
the steps are the same to clean the filters on the side.