Epson Pro L30002UNL 30,000-Lumen HDR Pixel-Shift DCI 4K Laser 3LCD Large Venue Projector (White) - Manual (Page 281)

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Cleaning the Air Vents
Clean the projector's air vents if they get dusty, or if you see a message telling you to clean them.
1. Turn off the projector, wait for the projector to beep, and unplug the power cord.
2. Carefully remove the dust using a vacuum cleaner or a brush.
Caution: Do not use canned air. The gases may leave a flammable residue or push dust and debris
into the projector's optics or other sensitive areas.
Parent topic: Air Filter and Vent Maintenance
Replacing the Air Filters
You need to replace the air filters in the following situations:
• After cleaning an air filter, you see a message telling you to clean or replace it.
• An air filter is torn or damaged.
You can replace an air filter while the projector is mounted to the ceiling or placed on a table.