Dyson 544589-01
Dyson Purifier Humidify+Cool PH2 De-NOx User Manual
Model: 544589-01
1. Introduction
The Dyson Purifier Humidify+Cool PH2 De-NOx is designed to purify, humidify, and cool your indoor environment. It features advanced filtration to capture pollutants, a hygienic humidification system, and powerful airflow technology. This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your appliance.

Image: The Dyson Purifier Humidify+Cool PH2 De-NOx unit in White/Gold, accompanied by its remote control.
2. Important Safety Information
Please read all instructions and warnings in this manual before using the appliance. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Always unplug the appliance before cleaning or performing any maintenance.
- Do not use outdoors or on wet surfaces.
- Keep out of reach of children and pets.
- Use only as described in this manual.
- Do not operate with a damaged cord or plug.
- Ensure the appliance is placed on a stable, level surface.
3. Product Components
Your Dyson Purifier Humidify+Cool PH2 De-NOx comes with the following components:
- Main Purifier Unit
- Remote Control
- Combined HEPA + K-Carbon Filter

Image: The main purifier unit, remote control, and combined HEPA + K-Carbon filter as packaged in the product box.
4. Setup Guide
- Unpacking: Carefully remove all components from the packaging. Ensure all protective films and cardboard stabilizers are removed.
- Filter Installation:
- Locate the filter covers on the side of the main unit.
- Press the release buttons and remove the covers.
- Insert the combined HEPA + K-Carbon filter into the unit, ensuring it clicks into place.
- Replace the filter covers.

Image: A person demonstrating the installation of the combined filter into the Dyson purifier unit.
- Water Tank Filling:
- Remove the water tank from the base of the unit.
- Fill the tank with clean tap water up to the maximum fill line.
- Securely replace the water tank into the unit.

Image: A close-up view of the transparent water tank at the base of the Dyson purifier, showing the water level.
- Power Connection: Plug the power cord into a suitable electrical outlet.
- Remote Control: The remote control is magnetized and can be stored neatly on top of the unit.
5. Operating Instructions
Your Dyson Purifier Humidify+Cool PH2 De-NOx can be operated using the included remote control or the MyDyson™ app.
5.1 Remote Control Functions
The remote control provides direct access to all key functions:
- Power Button: Turns the appliance On/Off.
- Information Button: Cycles through air quality information on the LCD screen.
- Auto Mode: Automatically adjusts purification and humidification based on detected air quality.
- Fan Speed Control (+/-): Increases or decreases airflow speed.
- Humidification Control (+/-): Adjusts the target humidity level.
- Oscillation Button: Activates or deactivates oscillation (up to 350°).
- Diffused Mode: Diverts airflow through the back of the machine for purification without cooling.
- Night Mode: Operates quietly with a dimmed display for undisturbed sleep.

Image: The Dyson purifier unit with its remote control, highlighting the various control buttons.
5.2 MyDyson™ App Control
For enhanced control and monitoring, download the MyDyson™ app:
- Download the MyDyson™ app from your device's app store.
- Follow the in-app instructions to connect your appliance via Wi-Fi and Bluetooth.
- Monitor real-time air quality, set schedules, adjust settings, and receive personalized reports from anywhere.

Image: A user interacting with the MyDyson™ app on a smartphone, demonstrating remote control capabilities for the purifier.

Image: A close-up of the MyDyson™ app interface displaying various air quality metrics and control options.
5.3 Key Features in Operation
- Advanced Air Purification: Automatically captures 50% more NO₂ and continuously destroys formaldehyde.
- Hygienic Humidification: Removes 99.9% of bacteria in the water, ensuring clean mist is dispersed.
- Whole-Room Circulation: Air Multiplier™ technology projects over 77 gallons per second of smooth, powerful airflow to circulate purified and humidified air throughout the room.
- Sealed Filtration System: The fully sealed, 3-stage HEPA H13 grade filtration captures 99.97% of particles as small as 0.3 microns.

Image: The Dyson purifier operating in a modern living space, illustrating its advanced air purification capabilities.

Image: The Dyson purifier in a bedroom setting, demonstrating how it circulates purified and humidified air throughout the room.

Image: The Dyson purifier operating in diffused mode, directing airflow away to purify without providing a cooling effect.
6. Maintenance
Regular maintenance ensures optimal performance and longevity of your Dyson Purifier Humidify+Cool PH2 De-NOx.
6.1 Filter Replacement
The appliance will notify you when the filter needs replacement via the LCD screen and MyDyson™ app. Filter life varies based on usage and air quality.
- Unplug the appliance.
- Press the filter release buttons and remove the old filter.
- Dispose of the old filter according to local regulations.
- Insert a new combined HEPA + K-Carbon filter until it clicks into place.
- Replace the filter covers.
- Plug in the appliance and reset the filter life indicator via the app or unit controls.
6.2 Water Tank Cleaning
Clean the water tank regularly to maintain hygienic humidification.
- Unplug the appliance.
- Remove the water tank.
- Empty any remaining water.
- Clean the tank with a soft cloth and mild detergent. Rinse thoroughly.
- For deeper cleaning, refer to the MyDyson™ app for descaling instructions.
- Refill with fresh water and replace the tank.
6.3 Exterior Cleaning
Wipe the exterior of the appliance with a soft, damp cloth. Do not use abrasive cleaners or solvents.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Appliance not turning on | Not plugged in; Power outlet issue; Remote control battery low. | Check power connection; Try a different outlet; Replace remote control battery. |
| No airflow or weak airflow | Air inlet/outlet blocked; Filter needs replacement; Fan speed set too low. | Check for obstructions; Replace filter; Increase fan speed. |
| No humidification | Water tank empty; Water tank not properly seated; Humidification setting off or too low. | Refill water tank; Ensure tank is correctly installed; Adjust humidification setting. |
| Unusual noise | Obstruction in fan; Appliance not on a level surface. | Check for foreign objects; Place on a stable, level surface. |
| App not connecting | Wi-Fi/Bluetooth off; Incorrect password; Appliance too far from router. | Ensure Wi-Fi/Bluetooth is enabled; Re-enter password; Move appliance closer to router. |
If the problem persists, please contact Dyson Customer Support.
8. Specifications
- Model: PH2 De-NOx (544589-01)
- Brand: Dyson
- Color: White/Gold
- Product Dimensions: 6.1"D x 8.66"W x 36.34"H
- Item Weight: 17.9 pounds
- Floor Area Coverage: 270 sq ft
- Controller Type: Mobile app, Remote Control
- Certifications: EPA Certified, CARB Certified
- UPC: 885609035482
- Manufacturer: Dyson
- Assembly Required: Yes
- Batteries Required (for remote): Yes
9. Warranty and Support
Dyson products come with a manufacturer's warranty. For specific warranty terms and conditions, please refer to the warranty card included with your purchase or visit the official Dyson website.
For technical support, replacement parts, or further assistance, please contact Dyson Customer Support:
- Online Support: Visit Dyson Support
- Phone Support: Refer to your product documentation for local contact numbers.
You can also register your product on the MyDyson™ app or Dyson website to receive personalized support and updates.
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