IN ADDITION, IT KEEPS THE INTERIOR VENTS FROM BUILDING UP WITH DUST, KEEPING THE ENTIRE CAR CLEANER INSIDE!IT IS COMPLETELY INVISIBLE WHEN THE HOOD IS CLOSED, AND WILL HELP ADD LIFE TO YOUR INTERNAL A/C COMPONENTS AS WELL!THIS PRE-CUT FOAM FILTER INSTALLS IN SECONDS AND CAN BE CLEANED WHENEVER NECESSARY FOR LIFETIME USE! GUARANTEED TO LAST FOR AS LONG AS YOU OWN THE CAR!!