Review: Dyson Purifier Hot+Cool Formaldehyde Fan Heater Keeps Seasonal Air Clean

dyson formaldehyde review
Courtesy of Dyson

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There are ample air purifier options out on the market — from systems big enough to keep an entire home pollen and dander free to smaller units aimed at filtering single bedrooms or offices. Meanwhile, you can get fans or space heaters from your local box store for less than you’d spend on a chain restaurant dinner.

The Dyson Purifier Hot+Cool Formaldehyde outs all of those functions together in a single unit and puts them all in your easy control with ample artificial intelligence. The result is a product that cools a room quickly or heats it with surprising urgency — all while purifying the air around it with extreme prejudice.



What We Liked about the Dyson Purifier Hot+Cool Formaldehyde:

While the virus-crazy world is obsessed with air filtering (and rightly so), it’s the temperature benefits that provide extra value with the Dyson Purifier Hot+Cool Formaldehyde. It’s air purification system is second to none for a consumer unit — and we’ll discuss everything formaldehyde in a moment. Beyond that, the fan provides powerful, focused cooling — while the heater send out impressive and immediate heat.

In a world of space heaters that used to take a minute or two to get huffing and puffing with some tropical temps, there’s some manner of Dyson wizardry at work after you set a selected temperature with the Purifier Hot+Cool Formaldehyde’s remote and hit the heat. The warmth is instantaneous.


Best Feature: Formaldehyde busters!

We believe most folks at home aren’t aware formaldehyde is something that should concern them. Still, according to the Environmental Protection Agency, a build up of the gas in any environment can cause “watery eyes, burning sensations in the eyes and throat, nausea and difficulty in breathing in some humans.”

Sources of formaldehyde in your home could be building materials, cigarettes and pressed wood products made using adhesives that contain urea-formaldehyde resins.


The Dyson Purifier Hot+Cool Formaldehyde offers what the manufacturer describes as their most advanced filtration system. It includes a formaldehyde sensor with a catalytic filter that continuously destroys the gas. A linked activated carbon filter removes gases and odors, while a HEPA filter captures 99.97% of particles 0.3 microns or larger in size.

Of course, if you’re wondering, the CDC says the Covid-19 virus can run from 0.06 to 1.4 microns. So, depending on the size of the viral particulate, the Dyson Purifier Hot+Cool Formaldehyde unit could catch it and filter it to oblivion.


What We Didn’t Like about the Dyson Purifier Hot+Cool Formaldehyde:

As with all Dyson products, the Dyson Purifier Hot+Cool Formaldehyde comes at a premium. Priced at about $750, this Purifier Hot+Cool Formaldehyde option might lead you to look for less expensive options. Still, you’ll be hard-pressed to find another filter out there that does everything the Dyson Purifier Hot+Cool Formaldehyde does in one package.


The Verdict: Pricey, but powerful.

It isn’t cheap, but the Dyson Purifier Hot+Cool Formaldehyde packs more features into a single design than most manufacturers would attempt to include. From the ability to cool and heat a room, to its powerful filtering technology, to its well-designed and easy to use teaming of a remote control and a free Dyson app, there is value and confidence on sale with this formaldehyde model.



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