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 unit is relatively large and weighs 24 pounds, so it needs a stable, firm surface for best performance and is best suited for indoor use. It supports up to four cats, each weighing at least 3 pounds, making it a good fit for multi-cat households. Entry is designed for easy access, and the modern black design is sleek enough to blend into most home settings. Users can also monitor litter levels, waste, and even their cat’s weight via a smartphone app, adding a convenient tech touch.

Though the initial cost might be higher than a standard litter box, it includes extras like liners, wipes, and filters to get started. Some users may find the size a bit bulky for smaller spaces, and it requires power to operate. For those looking to avoid daily scooping and reduce litter box odors effectively, this product provides a smart, hands-off experience with solid odor control and easy cleaning features.

The PetSafe ScoopFree OpenSky is a self-cleaning litter box designed to reduce odor and simplify maintenance. Its size (about 20.6"x10"x28.4") is spacious enough for cats of all sizes, giving them room to move comfortably. Made from plastic, it features an open-top design that helps reduce cats’ fear of entry, making it more inviting and safe.

The standout feature is its advanced odor control system: waste is swept into a large sealed drawer that can hold up to two weeks’ worth of clumps for one cat, and an integrated deodorizer helps keep smells down, reportedly up to four times better than traditional litter boxes. The box is also easy to manage since it eliminates daily scooping and offers waste bin liners for hassle-free disposal. Additionally, it connects to an app for health monitoring, which is a unique bonus if you want to track your cat’s weight and litter box habits. However, being an open-top model, it might allow some odors to escape compared to fully enclosed boxes.

The unit is relatively tall and weighs around 30 pounds, which might be bulky for some spaces. It requires Wi-Fi for app use, so it’s best if you have reliable internet. The open design might not suit cats who prefer privacy while using the litter box. This litter box is well-suited for cat owners seeking a low-maintenance, odor-minimizing solution that accommodates multiple cats and provides useful health insights, but it might not be ideal if you want a completely enclosed unit or have limited space.

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 litter box weighs 45 pounds, making it less portable, and its size requires a dedicated spot with nearby power. Some cats may need time to adjust due to the enclosed entry and automatic functions. While the automatic system reduces manual work, occasional cleaning of parts and replacing liners is still necessary. This litter box is well suited for households with multiple or larger cats and owners looking for strong odor control and less daily scooping, provided there is sufficient space and willingness to accommodate an initial adjustment period for your cat.