10 Best No Smell Litter Box 2025 in the United States

The Neakasa M1 Open-Top Self Cleaning Cat Litter Box is designed to cater to cat owners looking for convenience and odor control. Its spacious, open-top design is a significant strength, allowing cats of all sizes easy access while encouraging natural behavior. This feature makes it particularly appealing for households with multiple cats or larger breeds.

Another key advantage is its self-cleaning capability paired with the innovative 'Pull and Wrap' waste disposal system. It effectively minimizes direct contact with waste, which not only simplifies maintenance but also helps maintain a fresher home environment. The built-in sensors enhance safety by pausing operation if any cat touches the box while it's cleaning, adding an extra layer of comfort for pet owners.

With a large capacity that can last up to 14 days before needing attention, this litter box suits busy owners well, making it a great choice for those who travel or have a hectic schedule. The litter tracking mat included also helps keep your home cleaner, addressing one common concern with traditional litter boxes. However, the Neakasa M1 is not without its drawbacks. Some cat owners may find the size a bit bulky for smaller living spaces. Additionally, while it aims to control odors effectively, some users might still notice smells if the waste bags are not changed regularly. The reliance on technology, particularly the mobile app for monitoring, may also be a hurdle for less tech-savvy users.

This ZeaCotio Open-Top Self Cleaning Litter Box is a great fit for cat owners seeking a spacious, easy-to-use, and low-odor solution, especially for larger cats or multi-cat homes. Its extra-large size (21.6" x 20" x 21") and open, barrier-free entry make it comfortable for cats up to 27.5 pounds, encouraging easy access and transition from traditional boxes. The plastic material is standard for easy cleaning and durability, but the open-top design may allow some odors to escape compared to fully enclosed models. However, its automatic self-cleaning feature, paired with a removable liner and filter, helps keep the box fresh by quickly removing waste. The built-in safety sensors pause cleaning if your cat is inside, which adds a layer of protection.

The smart app connectivity is a standout feature, letting you monitor usage, receive alerts when the bin is full, and adjust settings remotely—ideal for busy pet owners. Setup is simple with snap-on parts, making maintenance less of a chore. The modern grey-white look fits well in most homes without being obtrusive.

On the downside, open-top boxes sometimes allow more odor to linger compared to enclosed ones, so it may not fully eliminate smell if you have many cats or poor ventilation. Also, while the app adds convenience, some users less comfortable with technology might find it unnecessary. This litter box balances size, smart features, and ease of cleaning nicely, making it a solid choice for cat owners wanting a hassle-free, mostly odor-controlled option that supports larger or multiple cats.

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.