Let's put it this way:
- if You want a ready-to-install filter, I suppose Your best bet (in the US/nearby) is for a filter incl. activated carbon like e.g. the FRAM Freshbreeze or similar.
- if You are willing/able to adapt a filter to Your needs/likes, do whatever You decide, it's Your car/lungs/money after all.
My previous posts were meant to give general technical hints for better understanding of the product.