Dyson Purifier Hot and Cool HP2 De-NOx

I purchased this as an alternative to a window unit air conditioner. It’s not an air conditioner but does an incredible job moving air and keeping my spaces cool. The air quality information is helpful and the purifier works well when air quality spikes. I’ve only used the heat function once but know it will work well in the winter months. Overall, I am satisfied with my purchase. It’s a lot of money, but the many functions it covers are worth it.

Great air filtration system with silent sound. Can’t wait to see it perform in the winter.

[This review was collected as part of a promotion.] I haven't had this product very long but I can tell a difference in the air quality in my house, especially my pet room! It's a little heavy but with all that it does, it's worth it. Heats and cools fast. Low noise.

The product is really good, but it consumes fair bit of electricity

The Dyson had been planned as a safe heater for a nursery where little hands could not get burnt. We found that the heater was set at 21 degrees but it did not turn off (despite this setting). We woke up to an extremely hot room with the baby rooms thermostats that we also use saying 25.

[This review was collected as part of a promotion.] Got this product 3 days ago and it has helped bring down the temp in the room quickly, the fact that it has many different coverage choices ranging from 45* to 350* helps circulation in the room (no more stuffy air) also tried out the heating feature and it definitely does the job, the room got hot in no time. Only thing that might be a slight issue is the noise, it can be little noisy but the overall efficiency of the purifier makes up for it.

[This review was collected as part of a promotion.] This slick, ultra-quiet purifier arrived just in time for the hottest day in Silicon Valley so far of 2025... it quicky transformed the air around me to be crisp and refreshing, as if I was taking a walk in the morning forest. It's so powerful that I didn't need to turn on the central AC because the bedroom was already cool enough with this running at a level 5 power at night. In fact it's so good, I'm considering of moving this to my elderly father's study room which can often get too hot or too cool... but I'm just afraid he might not be able to intuitively understand the buttons on the remote control, nor where to secure the remote control on the device. Maybe these are areas for future product iteration, along with some kind of smarter cord storage? I also think Dyson can use smarter branding for this device so that folks don't need to guess around on what seems to be molecular acronyms... All in all, the above aspects are not enough to detract from my five-star rating due to its power, projection, and aesthetics - the LCD screen is so clear and high quality, not to mention the coloring and finish - it looks and feels superb...!

I bought over a month ago just as a cold snap hit, I have a large open plan living/dining/kitchen and the heat function is superb, warms the space up very fast and the temperature control is excellent, once warm the areas stay warm with the heat even going into the bathroom and bedroom. It doesnt take up a lot of space so thats another bonus.

[This review was collected as part of a promotion.] Absolutely love the Dyson Purifier Hot+Cool HP2 De-Nox . Solidly built, packed with features, sleek and blends in with any decor. Unit easily covers 25 x 25 open room, providing nice air flow, low noise, and I can tell an immediate improvement in air quality from the filtration. Phone app is wonderful, allowing remote access to features, adjust air flow and direction, graphic views to monitor air quality, even when away from home. Only heat function is not available through the app. Heater worked great and took the chill out of the room. For me, the Purifier Hot+Cool HP2 De-Nox is a must and I am very satisfied with all of its features and performance.

[This review was collected as part of a promotion.] Although I have only had this new Purifier Hot+Cool HP De-Nox for a week, I can already tell a difference in my air quality. The first day I used it in my kitchen, it rapidly removed cooking odors. After that, it has been in my bedroom, making my breathing better while sleeping and reducing my allergies. I also love the app with its multiple features. Although I do not need heat now, the fan function does make the room feel cooler. It has great 360 rotation and also tilts, covering a wide area. All that with minimal sound at even medium settings. To top it off, I think it looks great, too.

I love this item. It is really sensitive to pollutants. I brought the model which was only cold but ended up upgrading as the heating is more beneficial for winter. Gave the other model to my daughter.

[This review was collected as part of a promotion.] I have been using the Dyson Purifier for a few weeks now and love it! It was very easy to make sense of the controls and install the filter, this shouldn’t cause any issues at all. The design and casing feels high quality and sturdy. I personally think this is extremely versatile and I intend to use it continuously throughout the year as it heats up to 99 Fahrenheit so it will be perfect in the winter too, however I am using it as a cooling fan in my bedroom as it is warm now. The 1-10 setting allows me to manually set it to exactly intensity I desire and I like that it can rotate 360 to fully cover a room and I can choose which direction I want to set the air flow. As someone that is health conscious I appreciate the built in screen so that I can monitor air quality, humidity etc. I love being able to see when I will need to clean the filter too, very useful! Overall, I think this is an amazing product I will definitely continue to use the air purifier for the foreseeable future. It’s another product in my Dyson home that reminds me of why I buy Dyson products in the first place!

[This review was collected as part of a promotion.] I received this product a week ago, and I am absolutely loving its function and features. First, I love the auto function. It detects when air quality drops or hits a preset level and turns on. Adjusting the fan speed itself to maximize filtration, and shuts off when quality returns to green levels. Also, the heating and cooling functions work great. Both maintaining quiet functionality when below the level 8 fan speed. Lastly the app itself is great. It provides a detailed breakdown of both inside and outside air quality, humidity, temperature and filter health. It is also very user friendly and is easy to control the unit itself. P.S. the unit itself also looks great with top notch build quality.

Very good product compared to the previous version.

[This review was collected as part of a promotion.] This air purifier has done an excellent job of cleaning the air in our new construction home. We could tell the difference in their air temperature and quality within a single night. The fan is quiet and works great for our uses.

[This review was collected as part of a promotion.] I recently purchased the Dyson Purifier Hot+Cool HP2 De-Nox, and it has completely exceeded my expectations. From the moment I turned it on, I immediately noticed an improvement in the air quality at home. It's not just an air purifier—this unit is multifunctional and has quickly become an essential household appliance for us. First off, the purification capability is outstanding. We live in a busy urban area, and the HP2 De-Nox does a phenomenal job removing pollutants, allergens, and even odors, leaving our living space feeling fresh and clean. The air feels lighter, and I've genuinely noticed fewer allergies and improved sleep quality since using it. Additionally, the heating and cooling functions are impressive. It quickly heats our rooms in the winter, eliminating any chilly corners, and in warmer months, the cooling feature provides a steady, comfortable breeze without the noise or buffeting of a typical fan. The Dyson Link app integration is a fantastic touch—it allows me to remotely monitor air quality, adjust settings, and even schedule the purifier to match our daily routines. It's intuitive, user-friendly, and genuinely enhances the convenience factor. Finally, it's beautifully designed—sleek, modern, and unobtrusive, blending perfectly into our home décor. Overall, this purifier has significantly enhanced the comfort and air quality of our home. Dyson continues to deliver innovation and quality that truly justifies the premium price point. Highly recommended!

[This review was collected as part of a promotion.] We have been enjoying our Dyson purifier for almost 2-weeks now & couldn’t be happier. Settings the product up & connected to the Dyson app was so simple. I really like that I can see everything about the purifier right on my phone through the Dyson app. It is great to see the change in the air quality throughout the day on the graph in the app & to also see what the current out air quality is. The purifier is so quiet that I forget it is running. I also think the fact that the remote is magnetized & attached to the top is brilliant…no lost remote.

[This review was collected as part of a promotion.] The cooling feature really does a great job of covering the area and keeping it cool. The noise is not a distraction one at a level 5.

[This review was collected as part of a promotion.] Absolutely love this machine! So many features packed in a this product! Hot air, cold air and all the filtration is what sets this apart for me. The app is awesome with all the air quality information easily accessible. Highest fan speed is still pretty quiet and low you can even hear it! Large room filtering friendly and really moves the air in a big space. I have some examples of the charts in my pictures. The spike of bad air quality is me roasting coffee near by and you will see the filter detecting it and filtering it out! Again I love owning this and highly I recommend!

[This review was collected as part of a promotion.] I’m extremely impressed with this unit. Small in size but very powerful. The heat works great and it’s really quiet. Does a good job of filtering out odors and clearing the air. Covers a good size area. It’s not an AC but does blow some cool fresh air when needed. APP is also very informative and easy to use. Plan on getting additional ones for multiple rooms. Like always Dyson knows how to make a good quality product. I highly recommend!