One of the most tedious chores for anyone with cats at home is the regular cleaning of the litter.
It is an essential process for the health and hygiene of the animals, as well as for controlling odour at home, but one that many people would love to see automated.
That is exactly the job of the PETKIT PuraMax 2, one of the most balanced price/feature solutions you will find on the market.
Here is our review of this automatic litter box.
PETKIT PuraMax 2 Review — Want to turn cleaning your cat’s litter into an automatic task?
The PETKIT PuraMax 2 is PETKIT’s latest automatic litter box, designed specifically for multi-cat households.
The main selling point of this generation is the redesigned drum with a 360-degree sealed base, which eliminates the problem of urine on the side walls and in raised positions — one of the most common frustrations with previous automatic boxes.
The 7-litre waste container allows up to 15 days without needing to be emptied in single-cat households, and the triple deodorisation system handles odour control autonomously.
Safety was also a priority in this version, with 11 high-precision sensors built in and an anti-crush structure that keeps the entrance open throughout the entire rotation of the drum.
Operation is silent at 35 dB, and full management is handled through the PETKIT app, which monitors usage habits, the weight of each cat, and sends real-time notifications.
The PETKIT PuraMax 2 is compatible with 99% of clumping litters on the market and is available in two versions, Basic and Premium, with prices starting at €469 in the official European store.
Design and build quality
The PETKIT PuraMax 2 is an enclosed automatic litter box with a modern, minimalist look.
With an all-white finish, it tries to offset its considerable size (62×53.8×55.2 cm) with a design that blends in more discreetly. The entrance is about 20 cm and the whole unit weighs around 10 kg.
On the front we have the opening for the cats to enter, a sensor located just at the bottom, and an OLED screen with physical buttons on the right side.
In the bottom-left corner there is a drawer, with a release button, where the sealed waste bag holding the collected clumps is located, along with an N50 deodoriser to eliminate ammonia and ensure the odour never spreads outside the bag.
Inside the PETKIT PuraMax 2 there is a slot to fit the spray air freshener on the left side, the litter area at the bottom, and a sieve to catch the clumps during the cleaning operation. This interior has a capacity of 76 litres, enough for the cat to be comfortable inside.
The build quality is quite high, with the quality of the rigid plastics and other materials used in the structure clearly noticeable.
The PETKIT PuraMax 2 is also designed to ensure the safety of the cats, featuring a series of sensors that guarantee the cleaning operation only begins with the box empty and that, even if that check fails, there is always an exit point for the animal.
Assembly and setup
Assembling the PETKIT PuraMax 2 takes about 10 to 15 minutes. The unit comes with an assembly manual that is not difficult to follow, and the whole process is also available in video form so any doubts can be cleared up.
Once the waste compartment is assembled, the spray installed (if included), and one of the two sieves in the box fitted to suit your type of litter, you simply do the first fill and levelling (note there is a maximum mark when adding litter) and start setting up the app — a process we will explain in a section below.
In the base version, the kit includes the litter box, one sieve and a magnetic adapter for maintenance, the power adapter, two waste bags, one N50 odour eliminator unit, and stickers.
The Premium version adds a 2nd sieve with a wider honeycomb, a mat to place at the litter box entrance, and a spray air purifier with 2 refills.
Safety measures to protect the cats
One of the biggest concerns of the PETKIT PuraMax 2 is to ensure that cats do not get trapped inside the box or get caught while trying to leave.
To this end, it implements a large number of technologies that ensure everything goes as planned. As well as the entrance never being fully closed — allowing the cat to leave at any time — it features 11 sensors so the cat’s presence is always detected.
At the entrance there is a proximity sensor that detects when a cat is near the box and suspends any operation. It also has 4 weight sensors to detect whether an animal is inside and to record its weight. Finally, it has 6 sensors inside that also help detect the animal.
In addition, there is always a delay before cleaning starts, so there is a waiting period between the cat leaving and the operation beginning.
How to help cats adapt to this new litter box?
Getting cats used to a new litter box is never easy, something we found in our case, where adapting our cats still took some time.
Used to a fixed, open litter box, they were immediately put off by the fact that it was enclosed and that “it moves on its own”.
During the first few days, my two cats did not use the box, and some work was needed for them to get to know the new space and lose their fear.
To help with this adaptation, PETKIT has a series of tips you can use to make the transition easier.
The first step is to place the PuraMax 2 next to the old box, keeping both available at the same time.
You can also add a small portion of the used litter to the new box, which helps convey a familiar smell and signal that the space is safe. In the first few days, it is best to keep automatic cleaning disabled so the cat gets used to the presence of the unit without being startled by the movement of the drum.
As the cat starts to explore the new box, clean the old one less frequently and keep the PuraMax 2 always fresh, which naturally makes the new option more appealing to an animal that is sensitive to odours.
If the cat still shows hesitation, it is worth checking the surrounding environment. Noisy appliances, busy walkways, or frequent changes to the space can make some cats more cautious. A calm, stable environment helps.
Whenever the cat investigates or uses the new box, reinforce it positively with calm praise or a small treat. Some cats adapt within 24 hours, while others need a few weeks. Slow progress is still progress, and the most important thing is not to force the transition and to let the cat explore at its own pace.
The PETKIT app
To customise the PETKIT PuraMax 2 experience and keep track of how this automatic litter box is used, the PetKit app is available.
Setup is quite simple — just tap the “+” button and follow the on-screen steps to get this litter box working without any issues.
During this process we identify the cats we have at home, the type of litter being used, and other options.
On first use, it is important to go through the menus to customise the settings in detail and optimise the user experience.
We can start by enabling or disabling the option to clean the litter right after the cat leaves, with the ability to customise the waiting time after the cat exits and to set minimum intervals between cleanings. As an alternative to the automatic process, we can schedule regular cleanings throughout the day.
We also have a deep-clean option with settings that allow for a more thorough clean, whether for larger clumps or to filter the residue out of the waste itself.
If you have the air purifier, you can customise periodic deodorisation, with scheduling, or opt for it to run automatically as soon as the cat leaves.
We also have a kitten protection option, which disables all automatic features to protect baby cats, or the child lock to block the action of the physical buttons.
In terms of monitoring, we start with access to the status of the purifier (if installed), an indication for replacing the N50 tablet to eliminate waste odours, and the status of the waste container.
We then have the ability to add reminders for cleaning or topping up the cat litter.
Just below, we find the usage statistics of the litter box by the cats, showing some usage metrics.
How the PETKIT PuraMax 2 works
The PETKIT PuraMax 2 offers the ability to make cleaning your cats’ litter an automatic, streamlined process.
While adaptation can be slow, this is a tool that delivers what it promises and keeps the litter always clean, with an automatic sensor that warns when the waste needs emptying or when more litter is needed.
The time between changes always depends on the number of cats and how often it is used, but you can easily go more than 10 days without worrying about cleaning the litter.
The sensors also work well, having automatically stopped the cleaning process whenever my cat approached the box during the operation.
The weighing system is a good help for knowing who used the toilet and monitoring weight trends. It does have some flaws, as it sometimes fails to record the correct weight, giving a value above or below the actual figure.
This issue means that sometimes you do not know when a cat has used the box, and it also fails to automatically identify the cat. As an alternative, the PETKIT PuraMax 2 Pro, with built-in camera, is the ideal solution for knowing in greater detail who used the litter, how long they stayed, and even whether there are changes in the urine (using a specific litter).
Cleaning the drum takes about 20 seconds, as you can see in the video below, ensuring the litter is always clean and the house odour-free.
Overall, the PETKIT PuraMax 2 is a solid solution for anyone wanting to automate litter cleaning without complications, and the small inconsistencies in weight recording are not enough to compromise what really matters day to day.
Verdict on the PETKIT PuraMax 2
The PETKIT PuraMax 2 is not a cheap product, and there is no way around that fact. At €469 it demands a conscious decision, but it is a decision that, day to day, ends up justifying itself.
The most immediate difference is the peace of mind. Going about two weeks without having to worry about cleaning the litter is something anyone with a busy routine will quickly come to value.
But what surprises most is how useful the PuraMax 2 is for keeping track of the cats’ health. Knowing each animal’s weight, following its daily progress, and getting an alert when one of them fails to use the litter box for more than a day are features that can make a difference in the early detection of health problems.
The most important caveat is adaptation. If the cat does not accept the new box, the whole investment loses its purpose. It is a process that can take days or weeks and requires patience, and that is something any potential buyer should bear in mind before going ahead.
For anyone with multiple cats, a demanding routine, or who simply wants to keep a close eye on their animals’ wellbeing, the PuraMax 2 delivers what it promises and justifies the price. As long as the cat cooperates.
The PETKIT PuraMax 2 can be purchased from the brand’s official store at a price starting from €469.
Techbit thanks PETKIT for kindly providing the PETKIT PuraMax 2.
- Automatic, streamlined cleaning of the cats' litter
- Several automatic features
- Easy maintenance
- Price still a little high for the market
- The scale sometimes gives inaccurate readings
Who is the PETKIT PuraMax 2 for?
The PETKIT PuraMax 2 is the natural choice for anyone with multiple cats at home who wants to minimise the time spent maintaining the litter box.
The 7-litre container capacity and the autonomy of up to 15 days without needing to empty it make a real difference in homes with two or more animals, where waste management can become a demanding daily task.
It is also a strong option for frequent travellers or anyone with a very busy routine. Monitoring via the PETKIT app, real-time notifications, and the ability to adjust settings remotely provide a peace of mind that a conventional box simply cannot offer.
Owners who keep a close eye on their cats’ urinary health will find the PuraMax 2 a useful tool, since the app records usage habits and the weight of each animal, making it possible to detect behavioural changes that may be a sign of health problems.
That said, it is worth bearing in mind that the PETKIT PuraMax 2 requires some time and initial patience for setup, connecting to the app, and getting the cats to adapt.
Quick answers about the PETKIT PuraMax 2
What is the PETKIT PuraMax 2?
The PETKIT PuraMax 2 is an automatic litter box designed for multi-cat households, with a 360-degree sealed drum, a 7-litre container, triple deodorisation, and a connection to the PETKIT app for monitoring and remote control.
How many cats is the PuraMax 2 recommended for?
The PuraMax 2 was designed especially for multi-cat households. The 7-litre container lasts up to 15 days without needing to be emptied in a single-cat home, with that interval naturally being shorter in homes with more animals.
What type of litter is compatible with the PuraMax 2?
The PuraMax 2 is compatible with 99% of clumping litters on the market. It includes two different sieves: one for larger particles such as tofu or mixed litter, and another for finer particles such as bentonite or mineral litter. Litter with particles larger than 12 mm is not recommended.
Is the PETKIT PuraMax 2 safe for cats?
Yes. The PuraMax 2 features 11 high-precision sensors, including proximity and weight sensors, that automatically pause the cleaning cycle whenever they detect a cat inside or near the drum. The anti-crush structure keeps the entrance open throughout the entire rotation.
How does the connection to the PETKIT app work?
The PuraMax 2 connects via 2.4 GHz Wi-Fi to the PETKIT app, available for iOS and Android. The app lets you control cleaning and deodorisation modes, receive real-time notifications, monitor each cat’s weight, and track how the box is used.
Does the PETKIT PuraMax 2 work without an internet connection?
Yes. Without a network connection, the PuraMax 2 continues to work according to the previously configured settings. However, the PETKIT app will not update usage data while the connection is down.
How long does it take for cats to adapt to the PuraMax 2?
It depends on each animal’s temperament. Some cats adapt within 24 hours, while others may need a few weeks. It is recommended to place the PuraMax 2 next to the old box, keep automatic cleaning disabled in the first few days, and add a small portion of used litter to convey a familiar smell.
How often does the PETKIT PuraMax 2 need to be cleaned?
The 7-litre waste container lasts up to 15 days without needing to be emptied in a single-cat home. In multi-cat households that interval will be shorter. Removable components, such as the drum and the sieve, should be washed regularly as needed.
What is the noise level of the PuraMax 2?
The PuraMax 2 operates at 35 dB, a level considered very quiet that does not disturb the sleep of cats or owners.
What is the price of the PETKIT PuraMax 2 in Portugal?
The PuraMax 2 is available in PETKIT’s official European store from 469 euros in the Premium version, with a 24-month warranty and a local repair centre.
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