As there’s no purifier, naturally, this fan didn’t help my hayfever symptoms. In fact, some experts say that sleeping with a fan on can actually exacerbate symptoms by helping to circulate dust and allergens around the room. So, if you really suffer, I would recommend opting for a purifying fan. The Dyson Pure Cool Link is meant to be placed in a corner of the room. Using the Dyson Pure Cool Link Tower In terms of its humidifying function, our tester suffers from dry skin, and so upped the relative humidity target setting to 50% to see if it made a difference. Once it reached this level - which took a few hours - our tester noticed that the skin on their hands did feel softer. The increased humidity also improved static charge when getting dressed, which was a welcome bonus!

The purifier uses a 360-degree glass HEPA filter that can be changed manually when required. It's lab tested for 12 months usage but could last you anywhere between eight to 12 months depending on your usage. After running for about 8 hours a day for a week and a half, my unit says the filters will last for another 4159 hours (about 6 months).You can’t see air pollutants with the naked eye but they can cause respiratory problems or exacerbate issues like hayfever, for example. Obviously, we can't stop breathing, so a purifier can help,” says Jessica Le Dinh, a senior design engineer at Dyson.

To someone like me who has hayfever, or for anyone living in a polluted area – such as next to a main road, for example. a purifying-cooling combination sounds ideal. But do they work? And are they worth the money? There’s a screen on the body which shows you various pollution levels (it’s really interesting to see the levels spike when the toxin levels increase, like when the oven is on!), as well as the humidity, temperature and when the filters need replacing. As a result, you will almost never see the purifier's intensity drop below seven for regular use. In the long run, that could mean the purifier will require a filter change faster in India than it does in UK etc. Based on my current usage, the filter is set to run out in the next six months, a couple of months shy of Dyson's claims. Still working from home and missing the office aircon? Forgotten what it's like to sleep through the night without sweating? Yup, the hot weather has finally hit – so it's time to invest in a fan for your home. It'll help you get some kip at night and stay comfortable during the day. As for how well the Link actually works, you can see its progress by viewing your air quality history. The graph changes colors based on the amount of particles in the air; green means a very low level, while red means a very high level. I set the Link in the middle of my living room near a wall, halfway between the garbage bin in my kitchen, a cat litter box, and the bathroom. I figured that would be the perfect spot to clean the air.Andas you can see in the image to the left, the air quality did improve after running the purifier for a few hours.

Performance: Cooling-wise, the fan does work and there are 10 different speeds. Saying that, you need to crank it quite high for the hottest days, at which point I found it loud. I had to turn it right down from the most powerful setting while watching TV as the noise of the fan was competing with the television. In sleep mode, it’s capped at level three, after which it becomes rather noisy, which might not be sufficient on especially warm nights.

Features: This model really does do it all. Like the Pure Cool, it works to monitor your home’s air quality and, if it detects any anomalies, adjusts its power accordingly to improve the air condition until it stabilises. It can do this automatically, or manually via the remote control or Dyson Link app. The humidifier can also run automatically; just set your preferred level of humidity. There’s also 10 power levels to choose from with the fan. Dyson says this is because the app matches data with international standards. As a result, it never recognises AQI in India to be acceptable. The app shows you both indoor and outdoor air quality, of which the latter it gets from the Central Pollution Control Board.The app also has a remote, that allows you to use the Cool Link from anywhere in the world. You can set schedules to turn the air purifier on at set times during the day. You can also turn the product on/off remotely whenever required. The Cool Link should be kept in a corner of the room. From there, it can oscillate to blow air out in all directions. It has two sensors that analyse, PM2.5, PM10 and VOCs (Volatile Organic Compounds). VOCs can be produced by paint varnishes, air fresheners, smoking and more. Essentially, the Cool Link will take care of dust, invisible pollutants and odours, just like most other purifiers. The voice control is also a useful feature for these ongoing working-from-home times; it was a great time saver to be able to turn the fan on and off from my seat without having to get up and faff about with it (yes there’s a remote, but it’s never to hand when you need it, is it?). Aside from its minimal, modern design, the tower has no distinguishing features. It's easy to wipe off and clean, and can be set to oscillate to help circulate air around the room. On the front of the base, near the bottom, is an embedded panel where you'll find a power button and an LED indicator that displays different symbols for when Wi-Fi is in pairing mode (flashing green), when it's connecting (flashing white), and when it's connected (solid white). When set to Automatic, the base will display a solid white A whilecleaning, and a solid green Awhen the air quality target has been met. A crescent moon symbolappears when the machine is inNight-Time mode. More on those modes in the next section.

Automatic mode is exactly what it sounds like. It activates the Pure Cool Link and adjusts the fan speed (1 being the lowest, 10 the highest) according to the room's air quality. It takes about six days for the Link to calibrate before it can sense higher than normal pollutants in an environment. Meanwhile, Night-Time mode simply sets the fan speed to 4 and dims the illuminated icons on the base. The Dyson Link app is new in India and it's the most confusing bit about this device. That's not to say it's not useful or easy to use, it's just set to higher standards than those prevalent in India. In the week and a half that I've used it, the app has never shown me acceptable AQI levels, settling to average at best. Performance: I was impressed with the cooling ability of this fan. Even on the lowest setting it provided noticeable cooling effects in my living room, which can get very hot as we have a large run of glazed doors that tend to trap heat. Using the night setting, my room stayed at a great temperature for sleep and the blades did not disturb me. Since 1982, PCMag has tested and rated thousands of products to help you make better buying decisions. Read our editorial mission & see how we test. As for the heater, obviously during a heatwave, you’ll not be so concerned with this but when I tried it, I was more impressed with it than with the cool air setting. It noticeably heated up my large kitchen-diner in about two minutes flat on a medium setting on a chilly day – I was genuinely surprised by its efficiency.Overview: This fan basically does it all – It’s a fan, a heater and a purifier all-in-one. So, if you’re looking for something all-singing-all-dancing, this is it. Dyson claims that this fan automatically senses particles and gases, capturing 99.95% of ultrafine particles, then pushes out purified air around the room (including formaldehyde, if that’s something that may concern you – although we’d hope not). This is helpful if you live somewhere where there’s lots of pollution, or if you suffer with hayfever. Aesthetics: Some may like this futuristic-looking silver and white model, but personally, I don’t like the bulky design. It reminds me of a kitchen bin, and because the wide base, takes up a fair amount of desk space. I’d say anyone with a small bedside table would struggle to make room for it, too. Features: It’s just a fan, but it does have two speeds. The main feature, I would say, is that it looks great. Unlike the other models we tried, this one’s retro design is made from sleek metal, making it far less of an eyesore than your standard plastic tower model. If you’re big on aesthetics, you might like it, then, but if you value technical features or having more control, it won’t be for you.