10 Best No Smell Litter Box 2026 in the United States

The Litter-Robot 4 Supply Bundle by Whisker is a medium-sized, automatic cat litter box designed to minimize odor and reduce maintenance for cat owners. Its plastic material is durable and easy to wipe clean, supported by included cleaner wipes and liners, making upkeep straightforward. The standout feature is its self-cleaning system that sifts waste into a sealed drawer, which helps limit smells significantly compared to traditional litter boxes. Additional OdorTrap refills and carbon filters work together to further control unpleasant odors and reduce litter tracking around the house.

The PetSnowy SNOW+ automatic cat litter box is a large, enclosed system designed for multiple or large cats, measuring about 31 x 21 x 26 inches and supporting cats up to 20 pounds. It features a durable ABS plastic build, which is easy to clean and maintain thanks to its modular design. One standout feature is its advanced TiO₂ photocatalyst odor control system that actively neutralizes smells, helping keep your home fresh without relying solely on fragrance. The box also has an automatic waste sealing function that collects and seals waste in disposable liners, significantly reducing the need for daily scooping—ideal for busy cat owners. Its enclosed design combined with a litter-control walkway reduces litter tracking, keeping floors cleaner. The entry type is an enclosed lid with a curtain, which helps contain odors but might feel a bit tight for very large or shy cats. The product includes safety features to pause cleaning if your cat enters, ensuring no accidents. App control adds convenience for monitoring and settings.

The PetSafe Legacy ScoopFree Crystal Pro is a self-cleaning litter box designed to reduce odors and simplify maintenance. Its size (about 27.6 x 19.1 x 16 inches) is suitable for most cats and fits comfortably indoors. Made from durable plastic, it includes disposable trays filled with crystal litter that effectively absorbs moisture and dehydrates waste, helping to control smells better than traditional clumping litters. The front-entry design with motion sensors automatically scoops out waste, which means less frequent manual cleaning and a generally fresher environment.