Introducing PUROBOT MAX 3: Wider Entry for Every Cat, Continuous Freshness for Every Home

There’s a point in living with cats where things stop feeling like chores and start feeling like patterns you barely notice anymore. You don't think about the litter box because there's nothing to react to. No smell when you pass by, no hesitation when your cat gets up and walks over, no second-guessing whether everything is fine. It just quietly keeps up with life.

PUROBOT MAX 3 is designed to create exactly that kind of normal. Building on PuraMax 2, it brings three meaningful upgrades: a wider, lower entry built for cats of every size and age, a five-layer OdorVoid™ Defense System that closes every gap in odor control, and a 3rd-generation litter pad with 2X anti-stick performance that keeps waste releasing cleanly, cycle after cycle. At the same time, the anti-pinch structure safety design remains one of the most important reasons cat owners choose a PETKIT litter box with confidence, and PUROBOT MAX 3 continues to deliver on that standard.

 

Wide and Low: Easier Entry for Larger Cats

The way a cat approaches the litter box says a lot about how comfortable they are with it. With PUROBOT MAX 3, we expanded the entry to better accommodate larger breeds and senior cats, giving them the space and ease of access that makes a real difference in day-to-day use. It's an upgrade built around the cats that needed it most.

The entry on PUROBOT MAX 3 is 43% larger than PuraMax 2, measuring 10.51 inches across with a threshold just 8.03 inches from the ground. It's the kind of opening a cat walks straight through without hesitating at the door. Inside, the 76L cylinder gives every cat room to turn around fully and settle in without feeling confined, making each visit comfortable regardless of breed or build. Suitable for cats weighing 1.5–10 kg (3.3–22 lbs), it accommodates the vast majority of cats without adjustment. For the most part, the box simply becomes a place they use without thinking about it, and that effortless consistency is exactly what makes everything else work.

 

OdorVoid™ Defense System: Fresh from the First Visit

Litter box odor doesn't come from one place, and it can't be solved at just one point. It builds across the full cycle, from the moment waste is exposed, through the rotation into the bin, to the days it spends sitting there. PUROBOT MAX 3 addresses each stage in sequence, so there's no gap for smell to slip through.

The cycle starts with cleaning. The box auto-cleans after every visit, stopping odors from spreading before they have a chance to build. Enable Smart Waste Covering in the PETKIT app and the drum also covers any exposed waste the moment your cat exits, helping clumps set cleanly and reducing surface exposure even further. From there, the enclosed drum design keeps odors contained within the drum during rotation, trapping smell before it reaches the room. The waste then moves into a sealed side bin with an airtight cover that closes behind it, locking odor at the source for as long as the cycle runs. Stationed directly beside the bin, the N50 Odor Eliminator neutralizes up to 98% of ammonia, the compound behind that sharp, immediate smell, before it has any chance to escape. And inside the drum, the N60 Smart Odor Eliminator paired with the Breezy Smart Odor Eliminator purifies the air from within, leaving the space fresh and clean for the next visit.

Five stages, each picking up where the last one ends. The result isn't just a box that smells less — it's a home where the litter box stops being something you're aware of at all.

 

Anti-Pinch Structure: Designed Safe from the Inside Out

Most people assume automatic litter box safety is mainly about sensors. Sensors matter, but they're not the whole picture. At PETKIT, we start from the structure itself — because a well-built machine shouldn't rely on sensors alone to keep your cat safe.

The drum and waste bin in PUROBOT MAX 3 form one continuous, seamless surface with no closing angles and no pinch points. More importantly, the drum gears are intentionally designed to be incomplete, which means the drum never completes a full rotation in either direction. There is always an open access point — not as a fallback, but as a permanent mechanical fact built into how the machine moves. No power outage, no sensor failure, no unexpected scenario changes this. Your cat can always step out freely.

Sensors add a second, independent layer of protection on top of that. Twelve high-precision sensors monitor movement and weight inside the drum in real time. The moment your cat enters during a cleaning cycle, rotation stops immediately and only resumes once they have fully exited. Structure first, sensors second, both working independently, both always on.

 

Everything Else, Handled

No scooping for up to 15 days. The 7L waste bin is large enough that a single-cat household can go up to 15 days completely hands-free. For multi-cat homes, the generous capacity still means much less frequent attention is needed.

A litter pad with 2X anti-stick performance. The 3rd-generation litter pad delivers twice the anti-stick performance of the previous generation, and that performance holds up over time. Waste releases cleanly on every cycle for the long haul.

Kitten Protection Mode. Enable it in the PETKIT app and the drum holds off on auto-cleaning after each visit, giving younger cats all the time they need without any sudden movement. A manual clean is one tap away in the app or a quick press on the top panel whenever you're ready.

Health tracking, by name. The PETKIT app tracks each cat individually, logging visit frequency, duration, and weight with every use. When a cat goes 24 hours without using the box, you'll receive an alert directly in the app. In a multi-cat home, the app identifies each cat automatically, so the data for every cat stays separate, accurate, and easy to act on.

Quiet enough to go unnoticed. At 35dB, PUROBOT MAX 3 operates below the level where most cats or people register sound, running through the night without disturbing sleep or routine.

Panel and app, both covered. Instant Clean, Deodorize, Level Litter, and Wi-Fi Pairing are all accessible from the top panel. Full scheduling, custom cleaning modes, kitten protection, and deodorizing settings live in the PETKIT app.

Compatible with 99% of clumping litters. Clay, tofu, corn, bentonite — PUROBOT MAX 3 handles virtually all of them. Two Litter Sifters are included: one for large-particle cat litter and one for finer mineral and clay-based options.

 

The Experience of a Litter Box That Just Works

A litter box is rarely something you think about when it's working well, and that's the point. No smell that reminds you it's there. No hesitation at the entry that breaks your cat's routine. No uncertainty about whether everything is normal when you're not around to check. PUROBOT MAX 3 is built for that kind of background reliability, quietly handling what needs handling so you don't have to.

Discover PUROBOT MAX 3 Self Cleaning Litter Box and learn more →