With the summer getting hotter, hayfever season here, and air impurities on the rise, finding a way to keep the air in your home clean and healthy is getting harder than ever.
This is why more people are turning to air purifiers to keep the air in their homes free of things like dust, smoke, pet dander, and other issues. This guide will go through everything you need to know about smart air purifiers, including how they work, whether they are right for you, and the best ones to buy in 2021.
The best air purifiers for your home in 2021
Levoit Smart WiFi Air Purifier
The single most impressive smart air purifier we’ve found, the Levoit Smart WiFi Air Purifier strikes a solid balance between performance, ease of use, and cost.
First off, as a filter, it’s incredibly impressive, covering a huge 48 square meters of area, which is enough to cover two decent-sized rooms, which is by far the biggest out of anything on our list. The filtration works using a triple filter system; a preliminary filter, an H13 HEPA filter, and an activated carbon filter for removing contaminants.
It’s very simple to use, with 3-speed settings, a timer that runs from 1 to 12 hours, and a sleep mode that runs at an incredibly low 23dB, which is around the sound of leaves falling to the ground; just above a whisper.
The Levoit air purifier runs on the VeSync app, which is a third-party app that links into over one million different devices. Installation is simple, and you can link this to Alexa and Google without issue, tying it directly into your home setup.
The downsides are scant. It’s a reasonably chunky system, sitting at about the size of a small air conditioning unit, so requires a little more floor space than some other models. But the area covered more than makes up for that, making this easy to position. It’s also reasonably expensive, though not excessively so.
But what you get for that value is incredibly impressive, with incredible coverage and filtration. Filters also last for a long time, an average of 6 months, which, considering air throughput, is crazy.
Overall, If you’re buying a smart filter air purifier that’s designed to serve a good chunk of your home, there are few better options than the Levoit air purifier.
Proscenic A8 Smart Air Purifier
The most budget-friendly model on the list, that doesn’t mean that the Proscenic A8 isn’t lacking in features or quality.
Filtration is provided through an impressive four-state filter. An initial Ozone Free ultra-fine PP filter, then an H13 HEPA filter, then finally through activated carbon, and silver ion filters for ultra-clean air. Coverage is 40 meters cubed, and it has a CADR rating of 220 cubic meters per hour, meaning it will cycle an average room five times per hour.
Speeds can be set to four different modes, including a sleep mode, which runs at a low 24dB, just above a whisper.
The purifier itself is surprisingly beefy, at almost 9lbs in weight, but it’s small enough to comfortably sit on a sideboard, or tuck in against your sofa. Looks are pretty, like a simple white cylinder that will look at home against almost any style of décor.
Controls are very simple, with a set of top buttons that are simple to use. In-app controls are used through the Proscenic app, and you can also link to both Google Home and Alexa, tying it into your smart home setup.
While it might not have the raw power of the other air purifiers on the list, the Proscenic A8 is the best budget purifier we’ve looked at, making it a perfect fit for most homes, especially if this is your first foray into buying something like this.
Dyson Pure Hot and Cold Filter and Fan
Absolutely packed with technology, and not just an incredibly air purifier, but an excellent all-around home environment filter, the Dyson Pure Air is the single best model on our list, held back only by the very high price of entry.
But you’re getting so much for the money. Firstly, it’s not just an air filter. The Dyson Pure also functions as a smart fan for hotter days and a smart heater for those cold winter months. All the while keeping your air clean and safe.
This puts Pure Air in an enviable position where it can take the place of multiple devices around your home. So while it might be more of an investment upfront, we absolutely believe it’s worth it.
Filtration is provided through a 360 degree HEPA filter, and a second activated carbon filter. The fan promises to filter out 99.95% of allergenic particles in normal use, an incredibly high number, and it’s certified to be asthma and allergy-friendly.
Controls are simple, including app control. One thing we particularly love is the constant air monitoring the fan provides, with data provided on-app, or at a glance on the front LCD screen.
The downsides are very few. It’s very large and heavy, and obviously, the cost, as already mentioned. But apart from that, this is exactly the quality that you’d expect from a Dyson fan and air purifier.
Blueair Blue 3210 Air Filter
Designed around proprietary HEPAsilent technology, the Blueair 3210 Air Filter is potentially the best filter on our list, offering the best in air quality as well as several other metrics.
Like everything else on this list, the 3210 is a smart air filter, but this uses a set of smart filter systems that remove as much as 99.97% of air pollutants, at a rate of 5 times per hour.
The primary filter is machine washable, and intelligent design choice that prolongs the life of the main filter, decreasing running costs. On that note, power requirements are ridiculously low. From 10W down to a frankly absurd 2W per hour, meaning it costs more to switch on a lightbulb for an hour than it does to run this for an entire day.
Running volume is equally impressive, from a high of 48DB (normal conversation volume) down to 18 DB (below the level of a whisper).
The looks are stunning. A half white, half patterned grey that’s modern and pretty, and will happily fit in most homes regardless of décor. It’s also light, at just 1.7kg (3.75lbs) making it easy to move around the home.
We love the Blueair 3210. If it could handle larger rooms, it would be our number one pick without question. But unfortunately, it’s only recommended for rooms up to 17 square meters in size, which is just under the size of an average living room.
But if you’re buying an air filter for a room that’s within its space requirements, then it’s an absolutely amazing piece of kit. With its amazing air quality rating and incredibly low operating volume, we absolutely recommend the Blueair 3210 as best for bedrooms, both for adults and children.