Very straightforward, no tools required:

Lower the glove box and disconnect the damper arm from the glovebox:

Pull the glove box down & undo from where it attaches on, which exposes where the cabin air filter is housed:

Remove the cover via the simple latch on the right:

Swap air filters. Pay attention to the direction. Mine was crushed for some reason:

Replace all & done! Wrap up the same way, replacing the cover, hooking the glovebox back on, and connect the damper arm.