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This Dyson Air Purifier Is $200 Off Right Now
A multifunctional unit that can handle year-round use with smart features and excellent air purification.
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If you’ve ever wished your air purifier could do more than just purify, the Dyson Hot+Cool Formaldehyde HP09 steps up with some bold solutions. It’s currently available for $649 (down from $849.99), which is still a splurge, but not quite as painful as usual.
This machine is a purifier, yes—but also a fan and a space heater, all in one unit. Designed for rooms up to 800 square feet, it uses a blade-free oval tower (classic Dyson) to project clean, warm, or cool air with a 350-degree oscillation range. That’s wide enough to cover most living rooms, and the device is light enough (just over 12 pounds) to shift from room to room without much hassle.
One of the most useful things about the HP09 is how much it tells you about the air you're breathing. It doesn’t only claim to clean—it shows you exactly what it’s removing. That includes everyday stuff floating around your home like dust, smoke, pollen, pet dander, fumes from cleaners and sprays, off-gassing from furniture or paint, and emissions from gas stoves or candles. It tracks all of this in real time, breaking it down into easy-to-read stats on the purifier’s LED screen or in the MyDyson app (which also pulls in outdoor AQI based on your location). You’ll see things like temperature, humidity, and overall air quality, plus specific readings for fine particles (PM2.5), larger particles (PM10), volatile organic compounds (VOCs), nitrogen dioxide (NO2), and formaldehyde (this being a big deal if your space has new furniture or paint).
The catalytic filter that breaks down formaldehyde doesn’t need replacing, but the HEPA and carbon filters that trap other pollutants are estimated to last up to a year (replacements run $79.99). You can control everything through the app or with your voice using Alexa, Siri, or Google Assistant. That said, it lacks Apple HomeKit support, and you’ll still need the included remote to activate heating for safety reasons. Also, according to this PCMag review, it gets loud when you push it to higher speeds.
For something simpler and cheaper, the $449.77 Dyson Purifier Cool TP07 (down from $649.99) skips the heater and formaldehyde filter but still keeps the air clean and your home connected.
