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Dyson HP12 Purifier Hot+Cool HP2 De-NOx Fan Heater - White/Gold (546294-01)

Dyson HP12 Purifier Hot+Cool HP2 De-NOx Fan Heater - White/Gold (546294-01)

$1,299

Dyson HP12 Purifier Hot+Cool HP2 De-NOx Fan Heater - White/Gold (546294-01)

546294-01
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$1,299
or 36 months of equal Gem Visa Interest Free Installments of
$36.08^
approximately
GEM Finance Card
Total repayments $1,299 excluding fees.

This section should always be read in conjunction with the Terms and Conditions for Product CareTM.

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Available on 36 months of equal Interest Free instalments:

$36.08^
approximately
per month
^ Total repayments $1,299 (excluding fees). Payment is required monthly. Min purchase applies. Offer ends 30/06/2026. Exclusions, T&Cs & fees apply incl. a $55 Gem Visa estb. fee & annual fees ($65 Gem Visa (charged $32.50 half yearly)/$65 Gem CreditLine (charged $32.50 half yearly)). Interest rate (currently Gem Visa 29.49% p.a./CreditLine 29.95% p.a.) applies after any interest free term ends. Credit provided by Latitude Financial Services Ltd. For cash advances, an interest rate of 29.95% p.a. and fees of $2 Gem Visa/$6 Gem CreditLine applies. Further information on rates and fees can be found at gemfinance.co.nz.
How it works
Description

Experience all-season comfort with the Dyson Purifier Hot+Cool HP2 De-NOx Fan Heater. Powered by Air Multiplier technology, this unit delivers strong, room-wide airflow for precise heating, cooling, and advanced air purification. Its sealed HEPA 13 and catalytic filters actively destroy formaldehyde and break down NO₂ gases, capturing even the smallest pollutants. Plus, Night Mode reduces noise and airflow to create a calm, serene atmosphere, perfect for restful sleep or focused work.

Key Features

  • All-Season Comfort with Dyson: Stay comfortable all year round using the Dyson Purifier Hot+Cool HP2 De-NOx. It uses Air Multiplier™ that delivers over 290L per second of powerful airflow to provide even heating, powerful cooling, and advanced air purification1.
  • High-Efficiency Purifier: Designed to improve your air quality, this purifier actively destroys formaldehyde2 and captures 50% more NO2 gases3. It also features a fully sealed HEPA 13 filter that removes 99.95% of particles as small as 0.1 microns4.
  • Full-Room Circulation: With a wide 350° adjustable oscillation, this unit efficiently circulates purified air throughout the entire room to ensure consistent, even airflow reaches every corner.
  • Whisper-Quiet Operation: Enjoy a quieter performance with its Night Mode feature, which reduces noise and delivers gentle airflow up to 50% to create a serene environment, perfect for restful sleep or focused work5.
  • App Control: By downloading the MyDyson™ app, you’ll receive expert content, monthly air quality reports, and personalised support for Dyson HP2 Fan Heater. It also works seamlessly with Siri, Alexa, or Google Assistant, so you can manage your air with just your voice6.

1Tested for filtration efficiency (EN1822), air projection (DTM801), purification coverage in a 81m3 room (TM-003711) and heating performance in a 35m3 room (DTM 961).

2Third party full machine testing based on GB/T 18801-2022 formaldehyde cumulative clean mass testing with continuous injection until plateau of formaldehyde CADR is achieved. Results may vary in practice.

3Tested to Dyson test method TM-003387. In a 3 cubic meter test chamber, at fan speed 10, at third-party test laboratory (Fraunhofer WKI), comparison against regular activated carbon performance.

4Particle challenge by DEHS oil specified in ISO29463 within a chamber specified in ASTM F3150. Tested in Max Mode at SGS IBR US, for whole machine efficiency above 99.95%.

550% quieter compared to max fan speed.

6Refer to the MyDyson™ app for compatible voice service.

Specifications
All Product Details
Brand Dyson
Product Type Air Purifiers
Model Number 546294-01
Colour White & Gold
Air Purifier & Dehumidifier
Air Purifier Type Fully sealed to HEPA standard, removing 99.95% of particles as small as 0.1 microns
CADR (Clean Air Delivery Rate) CADR rate (dust) 53 CFM
Coverage Area 81m³
Air Purifier & Dehumidifier Feature
  • Heating
  • Cooling
  • Diffused Mode
  • Humidity Indicator
  • Inbuilt Purifier
Filters Out
  • Pollen
  • Mould
  • Allergens
  • Odour
  • PM2.5
  • Viruses
  • Bacteria
Heating & Cooling
Fan Type Tower Fan
Cooling Area 27m² to POLAR
Heater Type Fan Heater
Heating Power 2050W
Heating Element Type PTC Ceramic Plates
Heating Area 35m³
Fan/Heater Height 76.5 cm
Heating & Cooling Feature
  • Adjustable Tilt
  • Night Mode
  • Sleep Mode
  • Quiet Mode
Airflow
Circulation Type Air Multiplier™ technology delivers powerful airflow- purified air throughout the whole room
Oscillation 350° Oscillation
Tilt Adjustment 30° Adjustable Tilt
Number of Airflow Setting 10
Airflow Type Air multiplier technology
Air Speed 290 litres per second
Settings
Number of Speed Settings 10
Number of Modes 2
Temperature
Heat Settings Thermostat controlled
Temperature Features
  • Temperature Control
  • Temperature Sensor
  • Thermostat Control
  • Multi-Flow Air Delivery System
  • Temperature Lock
Motor
Type of Motor Hyperdymium
Motor Power 40W
Noise Level Min: 45dB, Max: 60dB
Filter
Filter Type Fully sealed to HEPA 13 standard  Removes 99.95% of particles as small as 0.1 microns
Filter Life 6-12 months (HEPA)
Filter Feature
  • Removable Filter
  • Filter Cleaning Reminder
Safety
Safety Feature Tip Over Switch
Remote Control
Remote Control Included
Remote Battery Type Button
Remote Control Type Slim Magnetic
Technology
Technology Type Air Multiplier Technology
Sensors Constantly monitors your air quality, automatically adjusting airflow to save energy – purifying only when it's needed. Automatically detects airborne particles and gases, then diagnoses and reports them in real time
Connectivity
Wired / Wireless Wireless
Connectivity Type Wi-Fi
Smart Features
Display Type LCD display reports in real time on PM 2.5, PM 10, VOCs & NO2
Smart Functions Control and monitor air quality from anywhere using the MyDyson app. And control it hands-free with compatible voice services
Software / App Compatibility
App Enabled Yes
Compatible App MyDyson App
Compatible Mobile Operating System Apple iOS, Android OS
Home Appliance Power
Corded or Cordless Corded
Cord Length 2m
Wattage/Voltage AC220-240V 50/60Hz
Auto Shut Off Yes
Dimensions
Product Width 24.8 cm
Product Depth 24.8 cm
Product Height 76.5 cm
Product Weight 5.55 kg
Warranty
Manufacturers 24 Months
Reviews
Dyson HP12 Purifier Hot+Cool HP2 De-NOx Fan Heater - White/Gold (546294-01) is rated 4.6 out of 5 by 40.
Rated 5 out of 5 by from Another great Dyson product [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.
Date published: 2025-05-22
Rated 5 out of 5 by from Best I Ever Had! [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!
Date published: 2025-05-15
Rated 4 out of 5 by from "Powerful, User-Friendly Air Purifier" [This review was collected as part of a promotion.] The Purifier Hot+Cool HP2 De-NOx has been a fantastic addition to our 3,000 sq ft home, especially with seasonal allergies in the family—it's incredibly easy to set up and connects smoothly through the Dyson app. We love the option to both heat and cool, making it useful all year long. If we had one critique, it would be that the design is a bit bold for our taste; something more understated would better suit our home’s aesthetic. The air feels noticeably cleaner, and we've already seen a difference in our allergy symptoms. Overall, it's a high-performing unit that brings both comfort and peace of mind.
Date published: 2025-05-12
Rated 5 out of 5 by from Purifier Perfection [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.
Date published: 2025-05-15
Rated 5 out of 5 by from Great machine with great tech and features [This review was collected as part of a promotion.] I have been using this machine for about a week and it really is amazing! The fan is powerful enough to cool the whole bedroom, yet quiet and the sleep mode doesn't disturb the room during the night, so we are able to leave it on. The air filtration and constant monitoring is a very nice feature and can be accessed from anywhere when Wi-Fi is on. The purifier monitors/cleans out A LOT of pollutants (more than the other 3 purifiers I have in the house) while being extremely easy to use and constantly updating the status of our air quality. The filter seems every easy to change when needed with detailed instructions on the app.
Date published: 2025-05-06
Rated 5 out of 5 by from Another hit from Dyson I'm very happy with my new air purifier! The advanced settings allow for heating, cooling, airflow direction, and so much more. Control and monitoring from the app is always a plus. The footprint is also relatively small for the area coverage.
Date published: 2025-12-02
Rated 5 out of 5 by from Outstanding features and performance [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.
Date published: 2025-05-24
Rated 3 out of 5 by from 3 IN 1 - Awesome But ... Build quality is great, Cooling / Heating Air flow is good, Filtration is awesome. Too loud / noise to operated at fan speed above 5. App wifi connection is too slow, feel it's a costly trade to have wifi connection. Smart Home Matter / HomeKit connectivity could be a better upgrade.
Date published: 2025-09-12
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Delivery
Delivery

We aim to dispatch orders within 2 days. Delivery costs are calculated based on your location and the size of your order. Furniture may take up to 8 weeks to deliver as most products are made specifically for your order. Some Customer Direct products are shipped from overseas and may take longer to arrive. Some goods may take longer to deliver if a product is currently not in stock. A staff member will contact you where this occurs.

Easy returns

If you feel your product has failed a Consumer Guarantee (as defined by New Zealand Consumer Law) then don't worry you can easily return it to your local Harvey Norman store. We'll even pay for the postage if you live in an area where there is no store. Our returns policy covers any purchased item ( conditions apply).

What's in the box
  • Purifier Hot+Cool HP2 De-NOx
  • Remote Control
  • 360° Combi HEPA+K-Carbon air purifier filter
Questions & Answers
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Product Care
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With Product CareTM you have certainty that your product is covered for a specific period of time. If, during the Product CareTM term, your product fails to operate as a result of an Eligible Fault*, we will provide a one-off replacement of Your Product.

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Our experienced support team ensures that the assessment, replacement or remedy process under your Product CareTM is a convenient experience. Whether you are experiencing a product fault or needing toll free technical assistance, our team is here to provide support every step of the way.

Advantage

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