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Matt Thomas, Lead Small Electricals Buyer at John Lewis, has noted a marked increase in air purifier sales. “Typically, we’ve seen families with young children, new parents and families where there’s a history of allergies or respiratory conditions being the early adopters,” he says. The best air purifiers for mid-sized rooms 1. Sharp UA-HD50U-L: Best purifier and humidifier for mid-sized rooms
It’s extremely easy to set up, just a case of inserting the filters in the base and turning it on. Operation via the remote and the little screen on the unit is straightforward, too. If you’ve never seen a domestic air purifier, this is exactly what you imagined it would be like. Some purifiers have a built-in timer. This can be really useful if you want your machine to come on a few hours before you get home, or if you want to turn it off automatically at night.The CADR aims to provide an objective measure of the effectiveness of a portable air purifier at dealing with different types of allergens. A purifier with a score of 250 for dust particles is as effective as adding 250 cubic feet of clean air per minute. Buyers should focus on the results of the specific pollutant they’re aiming to eradicate, whether that’s pollen, smoke or dust, and many manufacturers will supply CADR figures for the most common. If you believe that the quality of the air around you is very important, you will be interested in this article. The best air purifiers for small rooms 1. Russell Hobbs RHAP1001B Clean Air Compact: Best budget air purifier
The best air purifiers for larger rooms 1. Hoover H-Purifier 500: Best quiet purifier for larger rooms We go above and beyond to embrace the future, constantly exploring and inventing to meet the ever-changing demand of our customers and consumers. It’s really designed for small spaces of around 10m², but we found its performance better than the 80m³/h CADR might imply. Spraying antiperspirant into a small room with the purifier at maximum speed, the Clean Air Compact brought PM2.5 particulates down to safe levels within three minutes and six seconds. At that speed it’s fairly noisy, with sound levels reaching around 48dBA, but in general use the lowest setting will be fine, and this takes the noise levels down to 36.2dBA, where the sound is noticeable but hardly aggravating. So if you have the Zona 620 which has a CADR of 620 at max fan speed and runs at 50 watts – you have a CADR per watt rate of 15.5 which is excellent efficiency. Generally the average CADR per watt rate is around 5 or less.The CADR rate measures how much air is filtered in cubic metres per hour (m 3ph) of clean, purified air produced. The higher the CADR rating, the cleaner the air in the room will become. As a rule, if the square root of the CADR rating matches the floor area of the room – eg 625m 3ph in a 25m 2 room – it is an excellent air purifier. Three-quarters is good and half is acceptable. You may see CADR measured in cubic feet per hour on American devices, but the maths is the same. Air purifiers use different kinds of filters to do their job – usually, a large, washable, reusable pre-filter to collect bigger particles, plus a finer filter, which is usually a disposable high-efficiency particulate air (HEPA) filter. The length of time this lasts varies, but on average expect it to need replacing every six months (or fewer if you use the machine less). It’s the HEPA filter that catches all the tiny airborne nasties, and these are capable of catching particles as small as 0.3 microns, which is more than three times smaller than a cigarette smoke particle.
The icing on the cake is excellent performance. In our standard anti-perspirant spray test, the DustMagnet got us down to safe levels within two minutes, with most of the work being done within the first 60 seconds. And while we had our doubts about its claims of capturing airborne dust before it settles, we did notice a lower build-up over a couple of days of testing. Normally we wouldn’t want to leave it on so long, but with the DustMagnet using around 4W to 10W when set to Auto, power consumption is relatively low. Quiet, efficient and effective, it’s the perfect purifier for your living room. It’s speed makes it ideal for living rooms and bedrooms and it can be wall-hung to save space,” says Matt Thomas of John Lewis. This is because, rather than drawing in air from behind, it draws it from a ring around its front surface. There is also a ring of coloured light all round it, which changes from green to red according to the air quality levels. In smart mode it adjusts its power accordingly. Airpurtech has been specializing in air purification (air purifiers, filters, fans, etc.) for over 30 years. Our sales network is all over the world, mainly in the United States, Europe, Southeast Asia and other regions. It’s as a purifier that we’re recommending it here. The Purifier Cool Autoreact offers an extremely high level of filtration, with a fully-sealed H13 HEPA system rated to remove 99.95 percent of particles down to 0.1 microns and a carbon filter to remove odours, harmful gases and VOCs (volatile organic compounds – see FAQ section below). So if you have a 40 watt air purifier running at maximum speed and you wanted to know how much it would cost to have running for 24 hours solid – the sum would be as follows:Features: The powerful airflow can also clean the entire room with maximum range, and the quiet operation does not affect the air supply effect. A few high-end units double as humidifiers, managing the moisture in the air to prevent dry air causing irritation to the nose, throat, lips and skin.
Something to look out for when buying an air purifier are ENERGY STAR certified room air purifiers. These air purifiersare over 25% more energy-efficient than standard models, saving consumers about 120 kWh/year An air-quality sensor, which enables the machine to switch itself on when the air quality becomes poorer, can be useful. After all, you can’t see when the air quality dips, for example, as the result of a high pollen count. Very little compared to other household appliances. Electric heaters and dehumidifiers tend to draw 1,000 to 2,000 Watts but household air purifiers draw just 20-30W, costing you around 2p per hour at current (June 2023) prices. However, these can rise steeply with extra functions: “Those that have heating, cooling and dehumidifier functions will use much more energy than a standard filter unit,” Matt Thomas says. If your air purifier has a dehumidifier then it may also have a compressor, which will make it more expensive to run. Smart features allow you to operate your purifier remotely or switch it on and off according to a schedule. You may also get useful data on air quality, temperature, humidity and more.What we really like about this purifier, however, is that it’s both effective and pretty quiet about it. At full tilt, it’s as noisy as most rival air purifiers, but in its sleep mode you’d struggle to hear it above ambient sound levels – we measured the output at just 31dBA. In our deodorant spray test, the H-Purifier 500 got the PM2.5 concentration down to safe levels within two minutes and eight seconds, and Hoover’s three-filter purification system has been approved by the Allergy UK charity. We’re not 100% sure about the option to add essential oils to the airflow, but the options include an H-Biotics bottle that adds probiotic “good” bacteria to the atmosphere. All in all, it’s a superior purifier that’s perfect for mid-sized and larger rooms, with a price tag that won’t leave you gasping. Even without all the smart stuff, this is an easy purifier to use. Clear indicators show the current mode and power setting, while a central ring glows blue through to red, depending on the current air quality readings. You can pretty much leave it on the Automatic setting and let it do its thing. It can get a little noisy at its highest speeds, peaking at 52.7dB in Turbo mode, but we measured a very reasonable 28dB in Sleep mode. Key specs – CADR: 280m³/h; Max room size: 35m²; Power settings: 4; Dimensions (WDH): 25 x 25 x 45cm; Weight: 3.8kg; Filter replacement indicator: Yes; Warranty: 2 years
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