Start at the source
Air purifiers and sprays cannot make up for a box that is not scooped often enough. The first upgrade is usually a routine that makes scooping and disposal easier to repeat.
Separate litter odor from fabric odor
Litter odor, pet-bed odor, and couch hair need different tools. A disposal pail helps after scooping, while washable covers and hair removers help fabrics hold less smell.
Match purifier size to the room
An air purifier should be sized for the actual room where the pet spends time. It also needs open airflow and realistic filter upkeep to be worth the space.
Watch recurring costs
Refills, filters, bags, and replacement parts change the real price. Check them before choosing a cheaper-looking odor-control product.