How do you replace the air filter?

• Do the following: 1. Turn off the projector power, wait for the cool-down period to end, and then disconnect the power cord. The cool-down period lasts for about 25 seconds. The actual time varies depending on the external air temperature. 2. Put your finger into the filter recess, and then pull straight out to remove the air filter. 3. Install the new air filter. Slide the cover in from the outside, and then push it in until it clicks into place.