DysonPurifier Hot+Cool Formaldehyde™ HP09

Although I purchased this on sale, I am delighted to have spent so much money on this item. Living in a rural community, when the power goes out for two days in the dead of winter with negative temperatures, is a scary thought. However, the heater on this unit kept my living room, warm enough for me to hesitate and make it through the storm. I have used it every day and have not needed to change the filter yet.

First, I've owned this for almost a year. And when I mean almost a year, I mean in three more weeks, it will have been a year. I have to say, in regards to this purchase, this device exceeded my expectations. Not only did it exceed my expectations, but a lot of the complaints I have heard, I don't see here. Or I don't hear, for example, the loud noise. This fan is just wonderful.And keep in mind, I am just getting ready to replace the filter now. It's at 4%. So, this filter claims it should last about a year. And keep in mind, I have been putting this fan through heavy use throughout the year. I have it scheduled throughout the day to go into auto mode or to start blowing during certain times.During the winter, usually any time between 8 to 9, I will have this fan having heat come out until midnight when I have an auto shutoff scheduled. So, yeah, this, believe it or not, has replaced our space heater. It just works so well. And I'm shocked at how well this specific device has worked.In fact, most likely near the end of this year, I'm going to have to buy another Dyson. Not this model, but basically another model that's smaller that could fit somewhere else within my apartment.Again, in terms of the noise level, it's no different from any other fan. I want to say, unless you have something wrong on the inside, this fan is perfectly quiet. This fan does pick up a lot of dust. It's very easy to clean. And again, it just operates wonderfully.Now, I have this fan at the edge of my apartment where my Wi-Fi could reach. And again, it still works wonderfully. If I accidentally leave the heat on and I know I need to turn it off, I could just get on my Dyson app and just completely turn it off.It integrates well with Alexa. Unfortunately, it does not integrate well at all with Siri. And I think it has to do with the United States regulations that you cannot use the smart app to actually schedule heat to turn on. Unfortunately, in the United States, that is now against the law.So if you're not a big fan of that, please call your congressman or your senator's office. Because again, the fact that you could just schedule things is great. Not only that, but it makes it safer. Also, it makes it safe that you could actually turn off your fan at a certain time so you just don't leave it running.Again, this is a wonderful buy. If you're in an apartment, you will appreciate it. Again, it's pricey. Keep that in mind. But it's one of those things everyone in my household just loves. At first, there were complaints because of the price. But again, it's something that has grown on each and every member of my house.So please consider this purchase. It does exactly what you want. And the things it does not do, honestly, you could blame that on your congressman.

Absolutely amazing. These fans are quiet, and have the best air filtrating that we’ve ever had (2 dogs and 3 kids)!We have them in most rooms now because they work so well.My wife and daughters love the heat option in the winter too.The price is certainly limiting, but we wait for them to go on sale.Scheduling on the app is super easy to use too !

I love the air circulation it provides to my apartment; it always feels fresh. My allergies are essentially gone. The cool and hot modes are fantastic. I have reduced my electricity bill by half because I don't need the AC anymore. The app is great. However, the app does not allow the option to turn on the heat mode (only with the remote control).

For something this pricey, you would expect it to actually work. It did not work. It turned on, and it is where its functionality ended. To be fair the auto system started working for a few min then shutdown. Manual controls never worked. It would start reading the air quality, then shut down all measurements going to zero. I know that’s BS bc I have AQ as part of my security system and I live in an older house. I got the purifier because AQ on my security system kept going off. The house was built in the 1940s and naturally creates a lot of dust. I’m sure it works great for most people, but I got a dud. I wonder if ai was sent a unit that was previously returned. Lastly the thing feels cheap for $600.

Works perfectly the only downside might just be wind speed I wish it was stronger you have to almost be in front of it to feel it. Otherwise it does clean the air in my room rather quickly and allows me to monitor contamination in the air.

This has been a lifesaver in our daughters room. Super easy to use, and heats her room nicely on extra cold nights when our HVAC doesn't keep up.

My office space is next to a poorly insulated exterior wall, and it has been extremely cold during winters for the last 12 years. I've tried multiple area heaters over the years, but they only raised the temperature a couple of degrees within just a few inches of the heating element.This heater is truly amazing. I don't know how it works, but it can raise the temperature of my entire office by 10 or more degrees very quickly. It features a thermostat, so it turns itself off when it reaches its target temperature, and then on again when it dips below the target. It's a bit noisy at full speed, but probably no more so than any other similarly sized area heater, and perhaps even less so. But this is nothing compared to the relief it brings.I can't speak to the other benefits this device claims, such as air purification, but as a heater it's been a game changer for me.