Dyson - Pure Hot+Cool Formaldehyde HP09

I’ve a hot and cold purify formaldehyde. It’s been sold for 4 years. Works amazingly as a heater heating the room evenly, the filter collects a load of dust, never had any clogs and the app is brilliant. They are expensive but worth it.

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.

Look for true HEPA filtration, and formaldehyde filtration. Dyson TP09 or HP09 are amazing, as is their BEAST the new Big+Quiet Formaldehyde purifier. These are very well made and designed purifiers with a true commitment to air quality. Some of these purifiers end up making things worse.

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’ve been very happy with our Dyson hot/cold air purifier. It’s so satisfying hearing the dog fart and three seconds later it boosting up to remove the “environmental threat”.

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’ve got both a breville (for a medium sized room, cost about $100) and a Dyson hot+cool with purification ($545 on sale at JB now) and both are great and non-wifi!

I second these. We made them for my pottery studio in the basement and for the area with the cat box first. We literally cannot smell the cat box at all now- until it’s time to change the filters! They work really well for their purpose and I’d recommend at least trying it since it’s going to be a lot cheaper. We also have two dysons- they’re heat and cool with an air purifier- and not only do they not seems to do much of anything to the air, they also have expensive filters and get mad when you use an off brand one. (They are absolutely awesome for temperature control in a 100 year old house, though.)

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’ve been using Dyson (wifi) with Homebridge and it’s been reliable. Most of the parameters does sync and work with HomeKit automation.

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.