Blueair's new 3-in-1 appliance can purify, heat or cool a room — this is why I think it's well worth the investment after testing it for a month

Blueair is a big hitter in the air purification world and has a loyal following. And while the Blueair ComfortPure 3-in-1 T10i Air Purifier is a new release for Blueair in the UK, I wanted to see whether it has what it takes to compete with the best air purifiers out there.

I was ready not to be wowed by the Blueair ComfortPure T10i, having been perfectly happy with my former air purifier. However, I was quickly converted to being a huge fan of this 3-in-1 air purifier – which can also serve as one of the best fans and electric heaters.

In a nutshell

The Blueair ComfortPure T10i offers loads of brilliant features that won me over quickly. It’s fairly silent during operation in the average home, but it will quickly power up at any hint of air quality dropping. When it’s working its hardest, it can be slightly loud, admittedly.

I loved all the functions on the Blueair ComfortPure T10i, including heating and cooling settings (a game changer to have a fan as an extra during a heat wave – I won’t need to dust off my fan now). There are plenty of customisable features too via the app, which thoroughly impressed me.

This model also has an Air Changes per Hour (ACH) rate of 4.8, which means it can clean the air in a 16 sq m room 4.8 times per hour. So, it’s going to be powerful in a home of almost any size – or even a shared office space. It also has a Clean Air Delivery Rate (CADR) of 132 cfm for pollen, 129 cfm for dust, and 113 cfm for smoke. This means it can deliver up to 132 cubic feet of clean air per minute.

Most importantly, over a month of testing, I’ve noticed my son’s allergy symptoms have abated, even during peak allergy season in May. I have also been pleasantly surprised by how fresh the air has been, despite cooking from scratch for almost every meal. Now, I can't wait to use it throughout the year, including in the winter as a heater, too.

Specifications

• Recommended room size: 78m2
• Air change per hour: 4.8
• CADR: 141
• Noise levels: 24-52dB
• Filter type: HEPA
• Dimensions: 26.2D x 26.2W x 50.2H cm
• Weight: 6.3kg
• Wattage: 20W
• Smart app connectivity: Yes
• Timer: Yes
• Auto mode: Yes

How I tested

Zoë Phillimore

Zoë is an experienced product reviewer and prides herself on meticulously putting products through their paces during testing.

Zoe spent the peak hayfever season of May testing out the Blueair ComfortPure T10i. With an allergy-prone child, a lifestyle that includes lots of home cooking, and the house being located on a moderately busy road, the Blueair ComfortPure T10i was really put through its paces. While the unit was sent to Zoe, this did not influence her review in any way.

Unboxing and setting up

The Blueair ComfortPure 3-in-1 T10i Air Purifier comes in a brown cardboard box, so a big tick for sustainable packaging here. In fact, there’s minimal plastic throughout the whole packaging, so I was able to stick the whole lot in my recycling. However, it still feels like a premium product.

Inside the box are some instructions, a small white remote and the device itself. The filters are already inside the air purifier, so that made the assembly process fairly straightforward.

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However, before you use the product, you do have to take the back off it and remove the plastic packaging around the filters. I had slight trouble opening the back, but this is because it needs a bit of a firm hand, and I was worried about breaking it. But after that, everything is very simple to do.

You plug in the device and then pair it with your phone, and the whole setup from opening the box to getting the device running took me 15 minutes. And that includes pairing the device with my phone and my silly struggle with opening the filters.

Design

Despite being Blueair’s smaller device in their ComfortPure range (the T10i’s big brother is the T20i, which covers a whopping 156sqm in an hour, but is considerably larger, heavier and more expensive), the Blueair ComfortPure T10i is still quite large if you ask me. It comes to above knee height on me, and definitely takes up a corner of my living room. Blueair also recommends keeping it a few inches clear of walls and furniture for optimal operation.

One thing I liked is that it also has a 360-degree design, and is designed to oscillate for improved air circulation (although you can turn this off). There is a fabric carry handle on the back to help you place it and move it around if you want to, too.

The LED control pad is on the top of the machine. It’s fairly discreet, but has plenty of interesting buttons for my children to have a go at jabbing. I thwart my most curious child (code name: Buttons, owing to his affinity for pressing any and all buttons to see what they do) by putting on the display lock. Aside from the 'helpful' children, I really like that it’s so simple to see what your purifier is doing on the interface (others I tested seem to work in more mysterious ways).

The Blueair ComfortPure 3-in-1 T10i Air Purifier is fairly inconspicuous, but it definitely still looks like a device rather than a design piece in your living space. However, I don’t mind how it looks. I think these days, having an air purifier is no more incongruous than having a smart speaker or TV in a room. I definitely prefer it to the look of the Shark NeverChange 5 air purifier (sorry, Shark!).

Performance

The Blueair ComfortPure T10i uses HEPASilent™ technology, which combines electrostatic and mechanical filtration. Through these filters your air is sucked in, cleaned and then the T10i blasts the fresh air through three outlets.

The Blueair air tracks PM2.5, which is essentially fine particulate matter in the air – dust, pollen, pet dander. So, all that sneezy stuff. Anything below 5 PM2.5 is considered healthy. And with an allergy-prone child in our household, I aim to keep it very low indeed.

The device itself displays the current room temperature on the control panel interface, and a coloured LED on the front indicates the air quality rating – green is good, yellow is moderate, orange is polluted, and red is very polluted.

The app also provides the outdoor air quality index (AQI), which is based on your location, entered into the app. Anything between 0-50 AQI is good, 50-100 AQI is moderate, and then it gets worse from there. The T10i device is not measuring the AQI itself, just pulling in data from other sources, so I can’t confirm the accuracy. But the app also tracks the indoor temperature and humidity, as you can use the T10i as a cooling fan or heater too.

During general testing, I cooked fajitas in the kitchen - two rooms away from my living room, where the T10i was placed. My husband was working in the middle room and came to find me to say, 'As soon as you started cooking, that fan thing started going crazy!' Of course, the 'fan thing' being the T10i (let’s just say my husband isn’t fascinated by all the myriad appliances I road test). So, I was impressed that the T10i was so sensitive.

And while this all sounds lovely, here at Ideal Home we have a series of strict tests we put all our air purifiers through during the review process. This allows us to really see if the air purifier is all mouth and trousers, or if it’s actually got some proper clout. Here’s where I really put the Blueair ComfortPure 3-in-1 T10i Air Purifier to the test.

When my air quality was excellent (ie, below 5 PM2.5), I lit a match and let it blow out in front of the air purifier while it was on the auto function. Then I timed how long it took the fan to whirr into action and how long it took for the air quality to stabilise. It took the T10i 7 seconds to register a change in the air quality and fire up the fans, and then 3 minutes 27 seconds to return it to zero. However, I was able to watch as it worked hard to bring air quality back under control.

Next up was the Volatile Organic Compounds (VOCs) deodorant test. Again, with the Blueair ComfortPure T10i set to auto, I sprayed a good spray of deodorant in front of the air purifier. It took the T10i 22 seconds to register the issue, and it quickly rocketed to more than 200 PM2.5 - yikes. Understandably, this took longer to sort out than the match smoke, but within 8 minutes and 15 seconds, the Blueair ComfortPure T10i was giving a reading of moderate. At 9 minutes and 9 seconds it was back to good, and at 10 minutes and 47 seconds we were back to 0 PM2.5.

My least favourite test - the vacuum test - came next. Vacuuming kicks up a fair amount of dust in itself, and emptying the vacuum dust bin is even worse. So I emptied the contents of my vacuum’s bin right in front of the Blueair ComfortPure T10i. With the dust, the air purifier was less concerned. It took two minutes to register a drop in air quality, but the dust only pushed it into the “good” from “excellent” zones. It took just 22 seconds to return it to “excellent” again.

Lastly, it was the porky challenge - two rashers of bacon cooked next to the T10i. It took the T10i 4 minutes and 41 seconds to register a change in air quality, from when the bacon hit the pan. This isn’t quite as responsive as I would have liked.

But then the PM2.5 values quickly rocketed to more than 400. The Blueair ComfortPure T10i clearly wondered what had hit it as it fired up its fans, and it took a few minutes for the numbers to start falling. By this stage, my kitchen was fairly smoky as I had shut all the doors and windows, and switched off the extractor fan. So, I was asking a lot from the Blueair ComfortPure 3-in-1 T10i Air Purifier here.

It took 26 minutes and 26 seconds to get it back down to a moderate range, 29 minutes and 11 seconds to get it back to “good,” and it was 36 minutes and 37 seconds before it returned to 0 PM2.5.

Ease of use

There are four ways to operate the Blueair ComfortPure T10i - on the device’s interface, via the app, the remote and using a voice assistant. The interface has plenty of information on it, but the app takes it to the next level. I found myself defaulting to the app more often than using the controls on the Blueair ComfortPure T10i itself, but it’s perfectly serviceable if you prefer not to use the app.

The voice assistant functionality is limited - you can just adjust the functions. But you can add it to a routine if you are a fan of IFTTT automation. However, Alexa et al aren’t going to deliver you stats or anything, which feels like a missed opportunity to make the device more accessible for visually impaired users.

On the Blueair ComfortPure T10i interface, you also can set the fan speed, see the room temperature, control oscillation, control whether it’s operating as a fan or an air purifier, set it to eco, auto and night modes and adjust the brightness of the LED itself.

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However, as I said, the app offers so much more fine-tuning. You can set timers, lock the display, add schedules, monitor your filter life, adjust the degrees the purifier oscillates through and even set up geofencing. Geofencing – or “Welcome Home”, as Blueair call it – means the app will use your phone to track you and fire up the T10i when you’re close to home and switch it off when it detects you leave.

I found myself spending time monitoring my air quality – there’s a graph that tracks it all for you over the day, week and month. It will also track the indoor temperature through the same time periods. Because of this, data enthusiasts are going to love the app.

Noise levels

I rarely noticed the Blueair ComfortPure 3-in-1 T10i Air Purifier operating in my home as it didn’t really need to fire up too often. I had it in my living room and didn’t ever notice it over the sound of the TV. And when I measured the sound, it came out at 35.5dB, which is akin to rustling leaves.

When the Blueair ComfortPure T10i was really fired up and going big guns on some grim air, it reached 63.6dB. This is fairly in line with the volume of a hair dryer. I didn’t actually find it as ferocious as that, so I was a bit surprised it measured so highly.

Portability

The Blueair ComfortPure T10i is fairly lightweight – 6.3kg, to be exact. It has a fabric handle on the back, and I’m able to carry it one-handed around the room. When I’m carrying it upstairs, I default to using a two-handed carry. Most able-bodied adults aren’t going to struggle with moving the Blueair ComfortPure T10i around.

Energy use

The Blueair ComfortPure 3-in-1 T10i Air Purifier is 20W. This is very average for air purifiers, if a little under. There is an eco mode, which turns off the fans if pollution is below 5 PM2.5.

Filter replacement

You can monitor the lifespan of the filters in the Blueair ComfortPure 3-in-1 T10i Air Purifier via the app. It will also show a red light on the device when it’s time to replace the filters. They should last 6-9 months. Replacing the filters is easy - the back pops off, and you simply slot in the new filters, then reassemble it. The Blueair ComfortPure T10i replacement filters cost £49 at the time of writing, so this is an added cost you need to consider.

How does it rate online?

The Blueair ComfortPure 3-in-1 T10i Air Purifier rates highly online. Users have been impressed by the performance, quality and look of the appliance. Many allergy sufferers have claimed it has relieved their symptoms, and some people even claim the air in their house smells cleaner after using the Blueair ComfortPure T10i.

A small handful of users have noted that the latest Blueair addition is noisier than they’d like – especially while sleeping with it on. Some other users complained that it did “nothing” for the odour in their houses.

Should you buy the Blueair ComfortPure 3-in-1 T10i Air Purifier?

I already had a small air purifier at home, which I was impressed with – but the Blueair ComfortPure 3-in-1 T10i Air Purifier has become the air purifier I’m loyal to now. I love tracking the air quality on the app, and find it’s much more sensitive than my other air purifier.

The Blueair ComfortPure T10i has given me great peace of mind when it comes to my son’s allergies, too. It’s hard to judge, but I haven’t noticed his usual barking cough that he usually gets through hay fever season.

I was impressed by the responsiveness and how you adjust the settings on the air purifier to suit your lifestyle.

My reservation is really around price – there are certainly more affordable air purifiers out there. However, when you look at the quality of the product and the performance, I’m sold on the Blueair ComfortPure T10i.