A
Anonymous
Guest
For my corolla I usually buy them for like $2.30 each, for the leaf like $4 a piece, the filter isn't totally neccesary but i do change it every year, why? It keeps the system inside clean, it prevents big pieces from getting caught in the fan, and the good filters do remove odors, so while the car wont stop working I find it neccesary to change it at least once a year.