The K&N VF2022 is a washable, reusable cabin air filter sized for the 2001-2005 Honda Civic glove-box housing. Instead of pleated paper, the manufacturer uses non-woven synthetic media on a polyurethane frame, and a depth-loading design that lets air keep flowing as dust builds up inside the fibers. The main purchase case is long-term cost and waste: you wash and reuse the element rather than replacing it every few months, and the manufacturer backs it with a No-Hassle Lifetime Limited Warranty. Searches for 2001-2005 Civic washable cabin filter, reusable glovebox cabin air filter, and K&N VF2022 vs OEM paper filter tend to point to this exact part.
The manufacturer lists this filter for the 2001-2005 Civic, and also for the 2002-2006 CR-V, 2003-2011 Element, 2001-2006 RSX, and 1997-2005 EL. Access is through the glove box, so the job is mostly a matter of lowering the glovebox and sliding the old element out. The manufacturer recommends refreshing the washable filter every 12 months or 12,000 miles, using its Refresher kit 99-6000, which includes a cleaner and a refresher spray. Each box contains two filters, so you can keep one in service while the other is cleaned and dried.
The manufacturer's application listing names the 2001-2005 Civic broadly. Trim coverage for the Si and Hybrid is not consistent across the information available, so confirm your specific trim with the manufacturer before ordering.
The manufacturer recommends refreshing the filter every 12 months or 12,000 miles. Its Refresher kit 99-6000 includes a cleaner and a refresher spray with instructions.
According to the manufacturer, each package contains two cabin filters, so one can be cleaned while the other is in use.
This is a beginner-level glove-box job. Empty the glove box, release its damper arm or side stops so it lowers fully, then remove the filter access cover or tray. Clean out loose debris from the housing with a vacuum and a crevice tool before inserting the new element. The manufacturer's install sheet for a related washable Civic filter says the element fits only one way: align the rails in the tray with the cut-outs on the filter, and the filter should sit flush. Confirm the orientation against the airflow arrow on the housing before you close it up. Reverse the steps to reassemble, and check that the glove box closes and its side clips seat properly. Plan on clearing the housing and glove box fully before you start, since the plastic clips can break if forced.