There's an important distinction to be made between "apple cider" and "apple cider vinegar." Missing the word "vinegar" makes quite a lot of difference actually.
Trying to reduce apple cider vinegar is a frustrating experience, and ultimately a pointless one since vinegar evaporates.
The lingering scent of evaporated vinegar smells a lot like B.O.
Despite the claims on the cat litter bag that it "captures and holds odors," an open bag placed in the middle of the kitchen does nothing to absorb any lingering B.O. smells that might be assaulting your nose.