Open the glove box, and remove the contents that may get in your way.
Use a flat-head screwdriver or another tool to press the two ends of the center of the glove compartment inwards (one end at a time).
Push the glove compartment in, towards the dashboard, and take it off.
Locate the cabin air filter cover that's at the back and upper part of the glove box.
Push down on the tabs to remove the cabin filter cover.
Remove the old cabin filter.
Install the new cabin filter with the arrow facing downwards.
Replace the cabin filter cover.
Re-install the glove compartment.