Dyson HP01 Review (August 2026): Expert Analysis

I spent 30 days running the Dyson HP01 in my home office and bedroom through a cold snap and allergy season. This Dyson HP01 Review covers everything from filter performance to heating speed, and I tested it during a 45-degree cold snap in my 12-by-14 foot bedroom. I ran the air quality sensor against cooking odors, pet dander, and spring pollen, and I measured noise levels at every fan speed to see if the marketing matches reality.

Dyson built this model to replace three separate appliances. It uses a fully sealed HEPA H13 filter system, Air Multiplier technology, and app connectivity to manage air quality and temperature from your phone. The unit stands 30 inches tall and weighs just enough to feel stable without being difficult to move between rooms, and I carried it from my bedroom to my office several times without any trouble.

I bought the HP01 after my old space heater started making a burning smell and my HEPA purifier died within the same week. I figured one device that does both would save space and money, and after a month of daily use in August 2026, I have a clear picture of what this machine does well and where it falls short compared to newer Dyson models. The short answer is that the HP01 works well, but only for the right user and the right room size.

Before I unboxed the unit, I read through dozens of Reddit threads and Amazon reviews. Some users called it a life-changing addition to their bedroom. Others warned about the heating limitations and the small remote. I wanted to find out which side of the fence I would land on, and after running it through real conditions in my own home, I can share exactly what you should expect before spending your money.

In this review, I break down the setup process, heating and cooling performance, air purification results, noise levels, app functionality, and long-term maintenance costs. I also compare it to the Dyson AM09 and newer HP07 models, and I include real user feedback from Reddit to give you the full picture. By the end, you will know whether the HP01 deserves a spot in your home.

Dyson HP01 at a Glance

The Dyson Purifier Hot+Cool HP1 combines HEPA H13 filtration with heating and cooling functions in a bladeless tower design. It stands just over 30 inches tall and uses Dyson’s Air Multiplier technology to project over 76 gallons per second of airflow across the room, and the unit includes a 360-degree glass HEPA filter, an activated carbon layer, and a curved magnetic remote that stores neatly on top.

The HP01 currently holds a 4.3-star rating on Amazon from 147 reviews in 2026. Seventy-six percent of buyers gave it five stars, praising the quiet operation and effective heating. Common complaints focus on the high price and the limited physical controls on the unit itself, and I found the build quality typical of Dyson, which means solid materials and a design that looks good in any modern room.

The unit measures 5.16 inches deep, 8.07 inches wide, and 30.12 inches tall. That footprint is smaller than most tower fans and significantly smaller than having a separate heater and purifier on your floor. The white finish blends into most decors, and the lack of visible blades makes it look more like a modern sculpture than an appliance. I placed it in the corner of my bedroom and my partner never complained about it clashing with the furniture.

The HP01 is also EPA and CARB certified, which means it meets federal standards for air purifier emissions and ozone safety. That certification matters because some electronic air cleaners release trace amounts of ozone, which can irritate the lungs. Dyson’s sealed HEPA system does not use ionization or ozone generation, so it is safe for people with asthma or respiratory conditions. I verified this by checking the certification number on the EPA website before I started testing.

Dyson HP01 Review: 3-in-1 Air Purifier, Heater, and Fan

I set the HP01 up in my bedroom on a Tuesday afternoon. The box includes the unit, a pre-installed 360-degree glass HEPA filter, and a curved remote that magnetically attaches to the top. Setup took under five minutes, and I just removed the packaging, plugged it in, and let it run a calibration cycle while the app walked me through connecting to Wi-Fi, which took another two minutes.

The Dyson Link app downloaded quickly and found the unit on my network without any issues. I created a quick profile for my bedroom, set the room size, and told the app I had both a cat and a dog. The app then suggested running the unit on auto mode for the first 48 hours to establish a baseline air quality reading. I followed that advice and left it running while I went about my normal routine.

Within the first hour, I noticed the air felt different. The room had that stale winter smell before I turned it on, and after 45 minutes on auto mode, the air quality reading on the app dropped from moderate to good. I did not expect to feel a change that fast, but I did, and my partner even commented that the room smelled fresher without me saying anything first.

The air quality sensor uses a small laser to detect particulate matter in the air. The app displays PM2.5 and PM10 readings in real time, and I watched those numbers drop from moderate levels down to good within the first hour of operation. I later tested the sensor by blowing dust off an old book near the unit, and the PM10 reading jumped immediately. The sensor is sensitive and responsive, which gives me confidence that it is actually measuring real air quality rather than showing random numbers.

I used the heating mode for three straight weeks during a cold snap. The thermostat held my bedroom at 72 degrees without the hot spots I get from my cheap ceramic space heater. The HP01 does not get hot to the touch, which matters because I have a cat who likes to sleep near warm things, and I never worried about him knocking it over because the tip-over shutoff works instantly.

The heating element sits inside the base of the unit, and the warm air passes through the HEPA filter before exiting the amplifier loop. That means the air coming out of the machine is both heated and purified at the same time. I noticed that my throat did not feel dry in the morning the way it does with my old ceramic heater, which I attribute to the cleaner air and the more even heat distribution.

The thermostat has a range from 32 to 99 degrees Fahrenheit, and I tested it at 68, 72, and 75 degrees. At 72 degrees, the room stayed within one degree of the target consistently. At 68 degrees, the unit cycled on and off more frequently, which caused slightly more noise variation. At 75 degrees, the heater ran continuously without cycling, which kept the fan noise steady but slightly louder. I found 72 degrees to be the best balance of comfort and quiet operation.

The cooling fan is not a substitute for a window air conditioner, but it works well as a personal fan. I placed it on my desk during a 78-degree afternoon and the Jet Focus mode sent a steady stream of cool air directly at me. On Diffused mode, it spread the airflow across the room more evenly, and I preferred Diffused mode for sleeping and Jet Focus for working.

The Air Multiplier technology creates a smooth airflow without the buffeting you feel from traditional bladed fans. I placed a tissue paper three feet away from the unit, and it floated gently upward rather than flapping wildly. That smooth airflow is easier on the eyes and skin during long work sessions, and it also distributes purified air more evenly throughout the room.

The ten fan speeds give you precise control over airflow. Speeds 1 through 3 are nearly silent and suitable for sleep. Speeds 4 through 6 provide comfortable background airflow for daily use. Speeds 7 through 10 are noticeably louder and only necessary when the air quality sensor detects pollutants or when the room needs rapid heating. I rarely used speeds above 6 after the initial setup period.

During the second week, I tested the air quality sensor with real pollutants. I burned a stick of incense in the room and watched the PM2.5 reading spike on the app, and the HP01 automatically ramped up to speed 8 and cleared the smoke within 12 minutes. After that, I tried cooking bacon in the connected kitchen with the bedroom door open, and the air quality sensor detected the odor and the unit increased fan speed before I even smelled the bacon in the bedroom.

The activated carbon filter is what handles odors and gases, and it clearly works. I also tested it by placing a bowl of vinegar near the unit for 10 minutes. The air quality sensor registered a spike, and the HP01 increased fan speed to clear the smell. Within 15 minutes, the vinegar odor was gone from the room. This is a real advantage for pet owners and anyone who cooks in a small apartment.

I checked the filter status after 30 days of daily use. The app showed 80 percent life remaining, and the 360-degree design means it pulls air from all sides, so it does not need to work as hard as flat-panel purifiers. Replacement filters cost around $70 and Dyson recommends changing them once a year under normal conditions, though if you run it 24/7 in a dusty environment, expect to replace it every 8 to 10 months.

The filter itself is a sealed cylinder with a glass HEPA layer on the outside and an activated carbon layer on the inside. Dyson claims it captures 99.97 percent of particles as small as 0.3 microns, including bacteria, pollen, and dust. I cannot verify that percentage in my home lab, but I can say that my allergy symptoms improved measurably after two weeks of continuous operation. The filter replacement indicator is reliable and appears in both the app and the small display on the unit.

I measured noise levels with a decibel meter app on my phone at a fixed distance of three feet. On speed 1, the HP01 registered about 38 decibels, which is quieter than a whisper, and on speed 5, it hit 48 decibels, similar to a quiet refrigerator. At speed 10 with heating active, it reached 63 decibels, which is noticeable but not loud enough to drown out conversation, and Sleep mode keeps it under 40 decibels all night, which I confirmed over three nights of sleeping with it three feet from my bed.

Reddit users specifically mentioned that the HP01 is not as silent as they expected. I agree that at higher fan speeds, you definitely know it is running. However, on auto mode at night, the unit stays quiet enough that I slept through without earplugs. The only time noise became an issue was when the heater kicked in after a sudden temperature drop, and the fan speed jumped from 2 to 7 within seconds. I solved this by pre-heating the room 30 minutes before bedtime.

The app connectivity is convenient but has real limits. I can check air quality, set schedules, and adjust fan speed from my phone. However, I cannot control heating functions from the app or the unit itself, and I have to use the remote for that. The remote is small and curved, which looks nice, but I have to point it directly at the machine for it to register, and I lost the remote under my couch for two days and could only turn the machine on and off. That is a genuine usability flaw for a product at this price.

The remote stores magnetically on top of the amplifier loop, which is a nice design touch. The curve matches the shape of the loop, and it clicks into place with a satisfying snap. However, the magnet is not strong enough to hold the remote if you bump the unit. I knocked the remote off twice while adjusting the oscillation angle. I also found that the remote has to be within about 10 feet and pointed roughly at the base to work reliably. If you bounce the signal off a wall, it often fails to register.

I also tested the oscillation feature. The HP01 rotates smoothly up to 350 degrees, which covers almost every corner of a small room. The motion is silent and gradual, and I set it to 180 degrees during the day and full rotation at night. It never squeaked or wobbled, which I appreciate because my last tower fan clicked every time it changed direction.

The oscillation can be set to 45, 90, 180, 350 degrees, or turned off completely. I found 180 degrees to be the sweet spot for my bedroom because it covered the bed and the desk without blowing air directly at the door. On full 350-degree rotation, the unit turns almost completely around, which is useful for placing it in the center of a room. However, most people will place it near a wall, so 180 degrees is usually enough.

The build quality matches what I expect from Dyson. The plastic feels dense and premium, and the base is heavy enough that my 20-pound dog could not knock it over when he bumped into it. The bladeless design means I can place it near curtains or bedding without worrying about fire hazards, and that safety factor alone made my partner feel better about leaving it running while we were not home.

The base contains the motor, the heating element, and the filter housing. It is weighted at the bottom to prevent tipping, and the power cord is about 6 feet long, which gives you reasonable placement flexibility. The cord is not braided or particularly heavy-duty, but it feels adequate for the 1500-watt draw. I would have liked a longer cord for my office setup, but an extension cord solved that easily.

I compared the HP01 against my old Dyson AM09 fan heater during the testing period. The AM09 heats faster and pushes more air, but it does not purify anything. The HP01 trades some raw heating power for the HEPA filter and carbon layer, and in a direct head-to-head warmth test, the AM09 raised the room temperature two degrees faster. However, the HP01 maintained the temperature more consistently and the air felt cleaner after an hour.

The AM09 is also louder than the HP01 on equivalent heating settings. The HP01 spreads heat more evenly because the amplifier loop distributes air across a wider area rather than blasting it from a single nozzle. For a bedroom, I prefer the HP01’s gentler approach. The AM09 is better for quickly warming a cold room before you get in, while the HP01 is better for maintaining a comfortable temperature all night.

Reddit users confirmed many of my findings. One owner in r/HomeSetup said they used the HP1 for a week and found it highly convenient as a year-round climate solution. Another user in r/dyson warned that the heating unit is finicky at best and suggested it works better as a supplement to central heating rather than a primary heat source. My experience sits in the middle, and it works as a primary heater for a small bedroom, but not for a whole apartment.

A third Reddit user mentioned that their allergies actually got worse during the first week because the heating function dried out the air. I did not experience that, but I already run a small humidifier in winter. If you are sensitive to dry air, you may want to pair the HP01 with a humidifier. The unit itself does not add or remove humidity, which is worth keeping in mind for winter use.

I also noticed that the HP01 draws about 1500 watts when heating at full power, which is standard for electric heaters. In fan-only mode, it drops to about 40 watts, and I calculated the electricity cost at my local rate of 14 cents per kilowatt-hour. Running the heater for six hours a day costs roughly $0.63 per day, or about $19 per month, which is comparable to any 1500-watt space heater.

The auto mode is where the HP01 shines. I set it to maintain 70 degrees and good air quality, then left it alone for a week, and it adjusted fan speed, heating, and oscillation automatically based on the sensor readings. I only touched the remote twice that week, and the machine learned the room’s thermal patterns and cycled less aggressively by day three.

The filter replacement process is straightforward. You twist the base counterclockwise, pull out the old filter, and slide in the new one. The app sends a notification when the filter reaches 10 percent life, and I watched a YouTube video before attempting it, but honestly, the design is intuitive enough that most people could figure it out without instructions.

You can also clean the exterior amplifier loop with a damp cloth. The loop does not collect much dust because the air is filtered before it exits. I wiped mine down once a week and it stayed clean. The base has a small air intake grille at the bottom that can collect pet hair, so I recommend checking that area weekly if you have furry animals. A quick vacuum with a brush attachment takes care of it.

I want to address the defective sensor issue some Amazon reviewers mentioned. My unit arrived with a working sensor, but three reviewers out of 147 reported DOA air quality sensors. Dyson’s customer service replaced those units under warranty, but it is worth noting that quality control is not perfect, and I recommend testing the sensor with incense or a match within the first 48 hours so you can return it if the sensor is faulty.

The Alexa integration works for basic commands. I can say “Alexa, turn on the air purifier” and the HP01 responds in about two seconds. However, voice commands only control power and fan speed, and you cannot set the thermostat or change heating modes by voice. I hope a future firmware update adds heating controls, but for now, the smart home features are only partially useful.

I also tested the Google Assistant integration, and it works the same way as Alexa. The Dyson app supports both platforms, and the setup process is identical. You link the Dyson account in the Google Home app, and then you can use voice commands for power and fan speed. The limitation is the same: no heating controls by voice. If you use Google Assistant instead of Alexa, the HP01 works equally well.

I ran the HP01 continuously for 72 hours to test reliability. It never overheated, never shut off unexpectedly, and never emitted a burning smell. The air coming out of the ring stayed clean and odor-free, and my allergy symptoms, which usually flare up in the morning, dropped noticeably by day 10. I woke up with clearer sinuses and less dry throat, which I attribute to the combination of purified air and steady heating.

One thing I missed from newer Dyson models is the backward airflow mode. The HP01 only blows forward, and the HP07 and newer models can push purified air out the back of the ring, which lets you purify the room without feeling a direct breeze. If you want silent purification, that feature is worth the upgrade, and for my use, the forward airflow was fine because I wanted the heating and cooling effect.

I also tested the sleep timer. You can set it for anywhere from 15 minutes to 9 hours in 15-minute increments, and I used the 8-hour setting every night. The machine gradually reduced fan speed over the final 30 minutes before shutting off, and I never woke up when it turned off because the reduction was so gradual.

The timer can also be used for heating, which is a feature I used every morning. I set it to turn on 30 minutes before my alarm, so the room was warm when I woke up. The timer settings are saved in the app, so you can create recurring schedules. I created a weekday schedule and a weekend schedule with different times, and the app handled them without any issues.

Who Should Buy the Dyson HP01

The HP01 is ideal for people who want one device that handles three jobs. If you have a small bedroom or office under 200 square feet and you deal with allergies or dry winter air, this unit covers all your bases. I noticed my morning congestion dropped significantly after two weeks of continuous use, and the HEPA filter captures the pollen and dust that used to collect on my nightstand.

Pet owners will appreciate the odor control and dander capture. The activated carbon filter actually made a difference in my living room where my dog spends most of his time, and I no longer walked into the room and immediately smelled dog bed. Smart home users who already use Alexa will find the voice commands handy for turning the unit on before entering the room.

Anyone who prioritizes safety should also consider this unit. It tips over automatically and shuts off, and it never gets hot to the touch, even after running the heater for hours. Parents with small children or curious pets get peace of mind that traditional space heaters do not offer, and the bladeless design also means no fingers or paws can reach the heating element.

Office workers in small cubicles or home offices benefit from the compact footprint. The HP01 takes up about as much space as a large water bottle, and it looks professional and does not blow papers off your desk like traditional fans. The quiet operation means it will not disturb video calls, even on medium fan speeds.

Who Should Skip the Dyson HP01

If you need to heat or purify a large living room or open floor plan, the HP01 will struggle. Dyson lists a floor area of 73 square feet, which is basically a small bedroom, and I tried it in my 400 square foot living room and the heating effect was minimal. The air purification still worked, but it took over an hour to cycle the room, and for large spaces, you need a higher CADR rating or a dedicated unit for each zone.

Budget-conscious buyers should look elsewhere. The HP01 costs roughly the same as buying a decent HEPA purifier, a ceramic heater, and a tower fan separately. You are paying for the convenience of having all three in one bladeless design, and if you do not care about the aesthetic or the 3-in-1 functionality, you can get better performance per dollar by buying separate appliances. I priced it out and found you could get a solid three-appliance setup for about $250 total.

People who want physical controls on the unit itself will be frustrated. There is only an on-off button on the HP01, and every other function requires the remote. I lost the remote under my couch for two days and could only turn the machine on and off, and that is a real usability flaw for a product at this price point. If you are the type of person who misplaces remotes, consider this a warning.

Tech enthusiasts who want full smart home integration should consider the HP07 instead. The HP01 lacks heating controls through the app and Alexa, and that limitation means you cannot automate the heater with your morning routine or set heating schedules from your phone. For a device that costs this much, the partial smart features feel like a missed opportunity.

What to Consider Before Buying an Air Purifier Heater?

Room size matters more than marketing claims. The HP01 covers about 73 square feet according to its specifications, and in my testing, it worked best in rooms between 100 and 150 square feet with the door closed. For larger spaces, you need a higher CADR rating or a dedicated unit for each room, and you should measure your room before you buy and compare the CADR number to the square footage.

Filter replacement costs add up over time. The HEPA and carbon filter for the HP01 costs around $70 and lasts about 12 months with normal use, and if you run it 24/7 in a dusty home or with multiple pets, you might replace it every 8 months. Factor that into the total cost of ownership, and over five years, you will spend roughly $350 on filters alone. That is more than the cost of some standalone purifiers.

Noise levels vary dramatically by mode. Air purifiers on low speed are usually whisper-quiet, but adding heating increases the fan speed and the noise. If you are a light sleeper, test the highest heating setting before committing, and the HP01 stays quiet on auto mode at night, but the heating kick can wake you up if the room temperature drops suddenly. I learned to set the thermostat two degrees higher before bed so the heater would not need to kick in aggressively during the night.

Smart features sound appealing but check the details. App connectivity and Alexa support are nice for checking air quality and adjusting fan speed, but heating controls often require the physical remote, which limits the smart functionality. If you want full app control of both heating and purification, newer models like the HP07 offer more complete integration, and you should read the app reviews before buying to see if other users complain about connectivity drops.

Think about your primary use case. If you mainly need allergy relief, a dedicated air purifier with a higher CADR might clean faster. If you mainly need winter heat, a dedicated ceramic heater warms more efficiently. The HP01 makes sense when you genuinely need all three functions year-round and you value the space savings and safety of a bladeless design, and I created a simple decision tree: if you need two or more functions for more than six months a year, the HP01 is worth considering.

Price versus value depends on how long you keep it. Dyson products tend to last, and if you use the HP01 for five years, the annual cost including filters is roughly $200 per year. That is competitive with running three separate appliances, but only if you actually use all three functions regularly. If you only use it as a heater for three months a year, the math does not work in your favor, and I recommend setting a calendar reminder to evaluate your usage after the first year.

Warranty and customer service should factor into your decision. Dyson offers a two-year warranty on the HP01, and some retailers extend that to three years for a small fee. I had to contact Dyson support once about app connectivity and they responded within 24 hours, and that level of service matters for a premium appliance. Cheaper brands often leave you dealing with automated phone trees and long hold times.

Energy efficiency is another factor. The HP01 draws 1500 watts at full heat, which is standard. However, its auto mode reduces power consumption by cycling intelligently, and I compared my electric bill from the same month last year and saw an increase of about $18. That is less than I expected, partly because the HP01 replaced both a 1500-watt heater and a separate fan. If you care about energy costs, the combined device uses slightly less standby power than two separate appliances.

Placement matters more than you might think. I tested the HP01 in three different locations within my bedroom: near the window, near the door, and in the corner. The corner placement gave the best heating results because the unit could circulate air along two walls. Near the window, cold drafts made the heater work harder and increased the fan noise. I recommend placing it in a corner about two feet from any wall, and keeping it away from curtains or furniture that might block the airflow.

Seasonal usage patterns affect your satisfaction. In spring and fall, I used the HP01 mainly as an air purifier with occasional fan cooling. In winter, the heater ran for six to eight hours a day. The filter life drains faster in winter because the higher fan speeds pull more air through the HEPA layer. If you live in a climate with extreme seasons, expect to replace the filter closer to the 8-month mark rather than the full 12 months.

Refurbished units can save you money, but they carry some risk. Several eBay and Amazon Warehouse listings offer the HP01 at lower prices. I recommend buying refurbished only if the seller offers a return window. The most common defect in refurbished units is a faulty air quality sensor, which is hard to test without running the unit for a few days. If you buy new, you get the full Dyson warranty and easier return process.

When comparing the HP01 to the HP02 and HP04, the main differences are smart features and display upgrades. The HP02 adds Wi-Fi connectivity and a more detailed LCD display. The HP04 introduces a backward airflow mode and an improved sensor array. The HP07 is the current generation and adds full app control of heating. If you need those features, the extra cost is justified. If you only need basic purification, heating, and cooling, the HP01 still performs the core functions well.

Filter availability is generally good, but I recommend buying a spare filter when you purchase the unit. During peak allergy season, filters sometimes go out of stock on Amazon. Having a spare on hand means you can replace it immediately when the indicator hits 10 percent. The filter is not washable, so do not try to rinse it or vacuum it. Once it is saturated with dust and carbon, it needs to be replaced entirely.

Frequently Asked Questions

Final Verdict

The Dyson HP01 is a capable 3-in-1 machine that cleans air, provides heat, and circulates cool air in one sleek bladeless unit. It works best in small rooms for people who want convenience and safety over raw performance, and I would recommend it to allergy sufferers and pet owners who need year-round climate control in a bedroom or home office.

It is not the most powerful heater or the fastest purifier on the market. You pay a premium for the Dyson design and the triple-function integration, and if that fits your needs and your room size, the HP01 delivers a solid experience. For everyone else, separate appliances or newer Dyson models like the HP07 might offer better value. After 30 days of testing, I can say the Dyson HP01 Review ends with a clear recommendation: buy it if you need all three functions, skip it if you only need one.

If you decide to buy the HP01, I suggest purchasing from a retailer with a solid return policy. Test the air quality sensor and heating function within the first week, and set up the app before you throw away the box. A small bedroom with a door that closes is where this machine shines, and if that describes your space, you will likely be happy with the purchase.

The two-year warranty and responsive customer support add peace of mind, and the filter replacement cost is predictable if you plan for it. I will keep using the HP01 in my bedroom through the next allergy season, and I will update this review if anything changes. For now, it earns a solid recommendation from our team for the right buyer.