You’ve seen them in every high-end apartment tour and sleek office lobby. That weird, hollow loop that somehow blasts air without any blades. It looks like something pulled straight off a sci-fi movie set. But when you actually go to buy a dyson heat and cool fan, the confusion starts. Dyson doesn’t make it easy. They have the AM09, the HP07, the HP10, and something called a Formaldehyde version that sounds like a chemistry project.
Honestly, most people spend $600 on these things and then get annoyed because they expected it to act like a portable air conditioner. It’s not an AC. If you buy it thinking it’ll drop your room temperature by 10 degrees in July, you’re going to be disappointed. It’s a fan. A very fancy, very smart fan that can also turn into a powerful space heater.
The Identity Crisis: Fan vs. Purifier vs. Heater
The biggest mistake is assuming every Dyson "loop" does everything. It doesn't. Basically, you have two camps. First, there’s the classic Dyson Hot+Cool Jet Focus AM09. This is the OG. It heats and it cools. That’s it. No filters to change, no app to check, just raw airflow.
Then you have the "Pure" or "Purifier" line, like the HP07 or the newer Gen1 HP10. These are the overachievers. They have HEPA filters in the base that scrub the air while they blow it. In 2026, air quality is a huge deal for people with allergies, so these models are the bestsellers. But here’s the kicker: because the air has to fight through a thick filter, the raw "wind" sensation can actually feel slightly weaker than the non-purifying AM09.
If you’re just trying to survive a drafty bedroom, you might actually prefer the older AM09. It’s smaller, punchier, and usually $100–$200 cheaper.
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Does it Actually Cool the Air?
Let’s get real about the "cool" part. This is where the marketing gets a bit tricky. Every dyson heat and cool fan uses what they call Air Multiplier technology. It sucks in air from the bottom and squeezes it out of a tiny slit in the ring. This creates a low-pressure vacuum that pulls in the surrounding air, multiplying the breeze.
It feels great. It’s smooth. Unlike a cheap blade fan, it doesn't "chop" the air, so you don't get that weird buffeting feeling on your face. But it is not chilling the air. There is no refrigerant. No compressor. If your room is 80 degrees, the Dyson is blowing 80-degree air at you. The "cooling" is just the wind-chill effect on your skin.
Now, the heating? That’s a different story.
The heating is incredible. Most space heaters smell like burning dust and make you feel like you’re sitting next to a toaster. Dyson uses PTC (Positive Temperature Coefficient) ceramic plates. They never get hot enough to burn that dust, so you don't get that "old heater" smell. Plus, once the room hits your target temperature—say, 72 degrees—the machine actually turns itself off. It monitors the room like a thermostat. This is why the dyson heat and cool fan is actually way more efficient than a $40 drugstore heater that just stays on until you manually kill it.
The Formaldehyde Factor: Worth the Cash?
You’ll see the Dyson Purifier Hot+Cool Formaldehyde HP09 sitting at the top of the price bracket. It usually costs a fortune. Why? Because it has a specialized catalytic filter that specifically targets formaldehyde—a gas that leaks out of new furniture, carpets, and even some paints.
Unless you just moved into a brand-new house or you’re doing a massive renovation with lots of pressed wood, you probably don't need it. The standard HP07 or HP10 filters already catch 99.97% of pollutants, including smoke and pet dander. Don’t pay the "formaldehyde tax" unless you have a specific reason to.
Breaking Down the Cost to Run
People worry about their electric bills. Rightly so.
- Cooling Mode: It uses about 6 to 50 watts. That’s less than a bright incandescent lightbulb. You can run it 24/7 and barely notice it on your bill.
- Heating Mode: This is the heavy hitter. It draws about 1,500 watts when it’s actively heating. That’s the same as any other electric heater.
If you leave it on "Heat" in a giant, drafty living room all day, your bill will spike. But if you use it in a bedroom with the door closed, it reaches the temp quickly and idles. In 2026, with energy prices where they are, using the "Auto" mode is the only way to go. It saves about 30% on running costs compared to just blasting it on high.
Real World Quirk: The Remote Control Trap
Here is something nobody tells you: If you lose the remote, you are in trouble. Most dyson heat and cool fan models only have one physical button on the base—Power. If you want to change the temperature, start the oscillation, or set a sleep timer, you need that tiny, curved silver remote.
Luckily, it’s magnetized and sticks to the top of the fan. Use that feature. Seriously. If you have one of the "Link" or "Purifier" models, you can use the MyDyson app on your phone, which is a lifesaver. But if you have the AM09? No app. Lose the remote, and you’ve got a very expensive paperweight until you buy a replacement for $30.
Maintenance is Weirdly Satisfying
One of the best things about the bladeless design is cleaning. You just wipe the loop with a cloth. No more taking apart a cage to scrub dust off plastic blades with a toothbrush.
If you have a purifier model, you’ll need to swap the filters. Usually, it’s once a year. The machine will literally count down the hours for you and nag you on the screen. Don't try to vacuum the filters to "save" them. They are HEPA-grade; once they're full, they're full. Just buy the replacement.
Which One Should You Actually Get?
If you want the best "bang for your buck" and you don't care about air quality stats on your phone, get the AM09. It's the most powerful as a pure fan/heater combo.
If you have pets, allergies, or live in a city with smog, the Dyson Purifier Hot+Cool Gen1 HP10 is the sweet spot. It gives you the HEPA filtration without the extreme price tag of the "Formaldehyde" flagship.
Actionable Next Steps:
- Check your Wi-Fi: If you want app control, ensure your home network has a 2.4GHz band, as Dyson units often struggle with 5GHz-only setups.
- Measure your space: These are "zone" heaters. They work best in rooms under 300 square feet. For a massive open-plan basement, you’ll need two.
- Compare the "Gen1" vs "Flagship": Always check if the HP10 is on sale before buying the HP07; the Gen1 often has updated sensors for a lower price because it lacks the 350-degree oscillation (it usually does 80-180 instead).