Our Verdict
Dyson Purifier Hot+Cool HP2 De-NOx Wins

The HP1 is the better pick for those prioritizing budget and general particulate/odor removal, as it still provides HEPA H13 filtration, heating, and cooling without the need for advanced chemical purification, representing a strong value proposition for essential functions.
Bottom Line: Dyson Purifier Hot+Cool HP2 De-NOx is the better choice. The HP1 is the better pick for those prioritizing budget and general particulate/odor removal, as it still provides HEPA H13 filtration, heating, and cooling without the need for advanced chemical purification, representing a strong value proposition for essential functions.
In-Depth Analysis
How they compare in practice
The primary distinction between the Dyson Purifier Hot+Cool HP1 and the HP2 De-NOx lies in their advanced pollutant targeting. The HP2 De-NOx is engineered to specifically capture 50% more nitrogen dioxide (NO2) and actively destroy formaldehyde. This is a significant real-world advantage for consumers living in urban areas exposed to vehicle emissions or those in homes with new furniture, carpets, or building materials that off-gas formaldehyde. Beyond purification, both Dyson models deliver powerful heating and cooling, eliminating the need for separate appliances. They integrate smart sensing, Wi-Fi connectivity, and app/voice control for convenience, allowing users to monitor and manage air quality remotely. The HP1 specifies 350-degree oscillation for even air distribution, a feature implied in the HP2's "even room heating and powerful cooling." The trade-off is clear: the HP1 represents a strong value for comprehensive air treatment, heating, and cooling. The HP2, however, elevates indoor air quality by addressing specific, often invisible, chemical threats.
Which to Pick for Your Situation
Concrete scenarios with a clear recommendation
For homes near busy roads or urban environments
DysonThe HP2 De-NOx specifically captures 50% more NO2, a common pollutant from vehicle emissions, offering superior protection in such settings.
For new homes or recently renovated spaces
DysonThe HP2 De-NOx actively destroys formaldehyde, a common off-gassing chemical from new building materials and furniture, which the HP1 does not explicitly target.
For comprehensive heating and cooling with smart features
TieBoth units offer powerful Hot+Cool functionality, smart sensing, Wi-Fi connectivity, and app control, making them equally capable for climate management.
Who Should Buy Which?
Find the right product for your needs
Buy Dyson if...
Purifier Hot+Cool HP1
The ideal buyer for the Dyson Purifier Hot+Cool HP1 is someone seeking an effective, all-in-one climate control and air purification solution without breaking the bank. This individual values core functionality and convenience over specialized chemical filtration. They are looking to capture 99.97% of common airborne particles as small as 0.3 microns, remove general household odors, and benefit from both powerful heating and cooling from a single device. They might live in an environment where formaldehyde and high levels of NO2 aren't their primary concern, perhaps a suburban home or an area with good ambient air quality. This buyer appreciates the 350-degree oscillation for even room distribution and the ability to manage their indoor climate and air quality through an app or voice commands, prioritizing comprehensive comfort and cleaner air for everyday needs.
Buy Dyson if...
Purifier Hot+Cool HP2
The Dyson Purifier Hot+Cool HP2 De-NOx is best suited for the discerning buyer who prioritizes comprehensive and advanced indoor air purification, especially against specific chemical pollutants. This individual likely lives in an urban setting where exposure to traffic-related nitrogen dioxide (NO2) is a concern, or they might reside in a new home, or have recently renovated, and are worried about formaldehyde off-gassing from furniture and building materials. For them, the ability to capture 50% more NO2 and actively destroy formaldehyde, alongside the standard HEPA H13 filtration for 99.97% of 0.3 micron particles, is a critical investment in their health and well-being. They still benefit from the dual heating and cooling functions, smart sensors, Wi-Fi connectivity, and MyDyson app control, ensuring their environment is both comfortable and exceptionally clean. They aren't sacrificing core Dyson features; rather, they are upgrading their defense against a broader spectrum of indoor air contaminants.
Spec Comparison
6 specs compared
| Specification | ![]() | ![]() |
|---|---|---|
| Rating | 4.4(157) | 4.3(169) |
| Cadr Smoke | 0 | 0 |
| Coverage Sq Ft | 0 | 0 |
| Filter Type | HEPA H13 | HEPA H13 |
| Model Number | HP11 | — |
| Smart Sensor | Yes | Yes |
| WiFi | Yes | Yes |
Swipe horizontally to see all columns
Pros & Cons
Quick overview of strengths and weaknesses
Dyson Purifier Hot+Cool HP1
- Captures 99.97% particles >0.3 microns.
- Removes gases and 97% of household odors.
- Functions as both a heater and a cooler.
- Remote control via app or voice commands.
- Lacks a clear CADR rating specification.
- Requires periodic filter replacement.
- Full functionality depends on app or voice control.
Dyson Purifier Hot+Cool HP2
- Captures 50% more NO2.
- HEPA H13 filters 99.97% of 0.3 micron particles.
- Destroys formaldehyde; removes odors and gases.
- Provides even room heating and powerful cooling.
- Lacks standardized CADR rating for smoke.
- No specified coverage area in square feet.
- Full features require MyDyson app or voice service.
Frequently Asked Questions
Common questions about this comparison
What is the main difference in air purification between the HP1 and HP2 De-NOx?
The HP2 De-NOx offers enhanced chemical filtration, specifically capturing 50% more NO2 and destroying formaldehyde, capabilities not explicitly listed for the HP1. Both use HEPA H13 filters for 99.97% particle capture.
Do these purifiers provide heating and cooling?
Yes, both the Dyson Purifier Hot+Cool HP1 and HP2 De-NOx function as all-in-one devices, offering both powerful heating and cooling alongside air purification.
Are the filters replaceable and what type do they use?
Yes, both models require periodic filter replacement and utilize a HEPA H13 filter, designed to capture 99.97% of particles as small as 0.3 microns.
Do these units have smart features?
Yes, both the HP1 and HP2 De-NOx are Wi-Fi enabled, include smart sensors, and can be controlled via their respective apps (MyDyson) or voice commands for air quality reports and settings adjustments.
Do either of these products have a CADR rating or specified coverage area?
Neither the Dyson HP1 nor the HP2 De-NOx provides a standardized CADR (Clean Air Delivery Rate) rating or a specific coverage area in square feet in their listed specifications.
Explore Other Categories
Popular comparisons across the site
Ask AI
Get instant answers about specs
Get the Deets
Ask our AI assistant
Ask Deets anything!



























