WARNING: This page is about a different car, the 2006 Honda Odyssey and 2005 Honda Odyssey. However, it is still accessible from the selected car via links, so may be relevant.
Remove the bolts (A).
Fig 1: Removing Air Cleaner Bolts
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Remove the air cleaner housing (B).
Install the parts in the reverse order of removal.