Dyson - Purifier Hot+Cool HP09

Oh, fuck no. As an owner of four of these things, they’re some of my most regretted purchases. They have a laughably low CFM, are stupid loud on even medium speeds, develop squeaky bearings within months, the filters are expensive as shit, and the software sucks. Seriously, do not buy one of these. Edit: I have two TP07s, an HP04, and an HP09. They all suck equally.

Its great that Dyson is able to combine all these feature into one product but it doesn’t do the best job with air purification. Had a tower fan with air purification and the sensor failed in 9 months. Instead of replacing the sensor, the service center determined that it is easier to give us a replacement unit but only honor the original one year warranty.

Dyson customer service is crap. I bought the hot and cold one. From the box, it wouldn't track the pollutants in the air when i paired it to my app. I thought since it was a new pairing, i needed to give it a couple days for a reading. I forgot about it. A couple of weeks go by and my wife reminds me that there's still no reading. So I called customer support. We tried trouble shooting it. No go. Then we had a video call and did more trouble shooting. Nada. Then they said I could pay to send it in and they'd take a look at it. I said "over my dead body, it's 2 weeks old!" Then they said they'd pay for shipping. At this point, I was pissed. I said I wanted them to send me a new one and I would send it back. They said no can do. I ended up contacting Amazon and getting a full refund. Yeah, screw Dyson.

i splurged and got the dyson air purifier that also works as a fan and space heater. personally, it was well worth the investment. i'm able to monitor the air quality, humidify and temperature in my home through an app.

Yes I have two and sold a third. I also have a Molekule but prefer the Dyson especially since it’s easy to transport when I travel and the remote comes in handy to not have to use WiFi when traveling. The fact it has heat and cool too just make it a win win!

I have a hot/cold Dyson that runs daily. I got it in 2020 and if my house were on fire, I would save my fan!

I feel for you, OP. I am an allergic-to-everything person to the point that I've needed to move homes to get away from paint, varnished wood, carpet, etc. The biggest trigger for me, though, and maybe for you is any centralized heating and cooling system. The systems' filters don't matter - the room's unfiltered air is also being blown in your face. I haven't found a purifier that can offset this problem. I don't use ACs and all my heat is water-based or electric. I experimented with Dyson - if it's the model that provides heating or cooling, there is a chemical in the device that can cause reactions. You can also be sensitive to the material in any carbon filter, like coal. The imperfect journey continues, but I ended up getting a custom purifer from Aller Air and I use it in the same room as a Coway HEPA. One for gas and chemicals, one for particulates. It still doesn't save me completely from my dusty old building, but I can now be confident that it's the only issue. Good luck!

Been using hot+cool since a few years and it makes my room so warm and toasty in winters.

I changed my filter after 2 years so I don’t agree with this. The technician just cleaned it and told me it isn’t as bad and I should continue using it.

It’s not necessary unless you have bad allergies or if there is smoke from some huge fire (knock on wood). I have Dyson combo fan/heaters with air purifier, so it’s automatically working when I use them.

I have a Dyson, BlueAir, and Levoit in various areas of the house. Levoit is near the litter box and is loud but does a good job - we never smell the litter box. Our favorite is the BlueAir in our bedroom - we keep it on auto mode 24/7. It’s super quiet and seems to work well. The Dyson is our most expensive one and we would probably not buy again. We like that it’s also a fan when it’s warm, but it doesn’t perform any better than the BlueAir which was a fraction of the cost.