Maintain and Replace the Air Filter

Check the air filter regularly for dust and debris, replacing it as necessary. The air filter is hot-removable and hot-insertable, as described in Field-Replaceable Units (FRUs). Take note of the following caution, however. 

Do not operate the router for more than a few minutes when the air filter has been removed. The fans and impellers are powerful enough to draw in foreign material, such as bits of wire, through the unfiltered air intake, which could damage router components.

See the following sections:

• Remove the Air Filter
• Install the Air Filter