I test air purifiers for a living — and this 50% off Prime Day deal is the one I’d buy

Prime Day has officially started, and there are deals to be had on all sorts of tech. But, while you can’t ignore the laptops, phones and TVs sales, don’t forget about what you can save on home appliances, too. One such category where you can save a lot is the best air purifiers.

Right now, you can get the Blueair Advanced Air Purifier 7470i for $288, down from $599. That’s the cheapest it’s ever been with a 52% reduction. There’s currently a range of Blueair models on sale for Prime Day, but we’ve picked this one out in particular — not just because it’s an amazing deal, but because we’ve tested it, and we know it’s a capable air purifier to have at home. Not to mention it’s as smart as they come. 

Based on our Blueair 7470i review, this is pretty much as advanced as air purifiers come. By connecting it to your phone and accessing it via the Blueair app, you get live data on the quality of your air, including varying particle levels and information on carbon monoxide and sulphur dioxide. If you don’t have your phone to hand, the quality of air is displayed via the LCD screen too — color coding helps to indicate this. Plus there’s information on the local temperature, filter lifetime remaining and humidity too.  

The app shows a graph to represent the current air conditions. This can help you solve what’s contributing to sudden poor air quality — be it smoke from the kitchen, hairspray or even deodorant. But, it can also help you see the overall difference the air purifier is making, which is something these appliances often lack. If you’re worried about the conditions outside of your home, the app lists information on this too, so you can better prepare yourself and best judge when to leave the house.  

We were pleased with more than just the smart features when we put this model to the test. It scored 270, 275 and 280 for its CADR across smoke, dust and pollen — which means its an effective and fast-acting air purifier. It’s also quiet in use, reaching 35.2 dB on its lowest setting during testing. On top of that, it’s relatively intuitive to use, despite all that extra data. Be warned though, it does consume more energy than your standard air purifier, requiring 0.241 kWh over 24 hours.    

Such a design is usually only available at a premium price, but thanks to Prime Day, it’s at a more affordable $228 for a limited time. In the past, it’s been reduced as far down as $299, but this latest deal discounts it by another $71 —  so this is as cheap as we’ve seen it. For that reason, if you want to invest in a premium air purifier, but the hefty price tags have put you off in the past, this deal is seriously worth considering.

For more savings, check out all the best Prime Day deals we’re rounding up in TVs, laptops, appliances, phones and more.