Epson PowerLite U50 3700-Lumen WUXGA 3LCD Projector - Manual (Page 181)

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Note: If dust is difficult to remove or the air filter is damaged, replace the air filter.
6. Align both sides of the air filter along the guide grooves in the projector, then gently push it up all the
way in.
7. Close the air filter cover.
Parent topic: Air Filter and Vent Maintenance
Related tasks
Turning Off the Projector
Replacing the Air Filter
You need to replace the air filter in the following situations:
• After cleaning the air filter, you see a message telling you to clean or replace it
• The air filter is torn or damaged