How and when should I clean or replace the air filter?

• Clean or replace the air filter if dust collects on the air filter. Make sure nothing is blocking the air vent. Dust clogs prevent proper ventilation and cause overheating and damage to the projector. See Cleaning and Replacing the Air Filter.
  
  If the dirt is difficult to remove or the filter is broken, you need to replace the filter. You can purchase air filters (part number V13H134A39) from your dealer or from the Epson Store.
  
  Warning:
  Before you clean any part of the projector, turn it off, let it cool down, and unplug the power cord. Never open any cover on the projector, except the lamp and filter covers. Dangerous electrical voltages in the projector can injure you severely. Do not try to service this product yourself, except as specifically explained in the User's Guide.