Introduction
Thank you for purchasing the Dhyala KJ03 Air Purifier. This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your device. Please read it carefully before use and keep it for future reference.
The Dhyala KJ03 Air Purifier is designed to deliver powerful purification for large rooms, covering up to 3000 sq. ft. It features an advanced 3-stage filtration system, including a washable pre-filter, H13 HEPA filter, and activated carbon filter, to effectively capture dust, pollen, pet dander, smoke, and other airborne particles. With smart features like app control, real-time air quality display, and safety features such as child lock and tip-over protection, it ensures a clean and comfortable environment for your home.
Important Safety Warnings
Please read and follow all safety instructions to prevent electric shock, fire, or injury.
Usage Restrictions:
- Keep the main unit, especially its air intake vents, away from open flames (e.g., candles, incense burners, stoves, fireplaces, cigarettes, firecrackers, lighters, electronic ignition torches, fire pits).
- Keep the unit away from high-heat appliances (e.g., electric heaters, radiators, foot warmers, electric stoves, irons) and prevent flammable materials from entering the unit.
- Avoid unstable surfaces prone to tipping.
- Do not use in high-temperature, humid, or water-exposed areas (e.g., bathrooms).
- Not intended for users with limited physical, sensory, mental capabilities, or experience/knowledge (including children) unless supervised by a responsible adult.
- Store out of children's reach to prevent tampering.
- WARNING: To Reduce The Risk Of Fire Or Electric Shock, Do Not Use This Fan With Any Solid-State Speed Control Device.
Power Notice:
- Use only compatible power cords and outlets to prevent fire, electric shock, or damage.
- Do not excessively bend, twist, or pull the power cord (risk of wire exposure or breakage).
- Use only the original power adapter; third-party adapters are prohibited.
- Always unplug before maintenance or relocation.
- Replace damaged cords immediately with manufacturer-approved replacements.
- WARNING: To Reduce The Risk Of Fire, Electric Shock Or Injury To Persons, Do Not Use Replacement Parts That Have Not Been Recommended By The Manufacturer (e.g. Parts Made At Home Using A 3D Printer).
Notice During Operation:
- Immediately stop use if abnormal conditions occur (e.g., unusual noises, odors, overheating, irregular fan rotation).
- Do not insert fingers or objects into vents, movable parts, or protective components.
- Never sit, lean, or tilt the unit.
- Ensure proper ventilation when operating near gas appliances (e.g., stoves, water heaters) to prevent carbon monoxide exposure.
- Avoid pouring liquids, powders, or small particles into the outlet or vents.
Product Overview
Package Contents:
- 1 × Dhyala Air Purifier
- 2 × Replacement Filters (pre-installed)
- 1 × Power Adapter
- 1 × User Manual
Product Components:

The Dhyala KJ03 Air Purifier, shown with pets and a mobile app interface.

Exploded view illustrating the 3-layer filtration system: Pre-Filter, H13 HEPA Filter, and Activated Carbon Filter.

Detailed diagram of the control panel buttons and indicators: PM2.5 Display, Filter Button, Child Lock, Screen Off, Timer, Sleep Mode, Auto Mode, Fan Speed, Power On/Off.
The air purifier features an aromatherapy box with a cover and pad, located near the filter. Air is drawn in through the air inlets and purified air is released from the top.
Setup
Initial Installation:
- Ensure the filter cover and lower intake grille are properly installed. The unit will not start if they are not correctly in place.
- Maintain at least 10 cm (4 inches) of clearance between the air intake vents and any walls or obstacles to ensure optimal airflow.
- Place the unit on a stable, flat surface.
- Connect the power adapter to the unit and then plug it into a compatible power outlet.
Wi-Fi Setup:
- Ensure the device is powered on.
- Long press the Wi-Fi icon (often represented by a signal symbol) on the control panel to reset the Wi-Fi.
- The Wi-Fi icon will start flashing for 3 minutes, indicating it's in pairing mode.
- Open the Dhyala mobile app on your smartphone and follow the in-app instructions to pair the device.
- The Wi-Fi icon will turn off if pairing is unsuccessful, and light up solid if successful.
- Note: After the app connects to the internet, the machine name will be displayed as "KJ03".

App control interface showing settings for child lock, light, filter reset, fan speed, timer, and schedule.
Operating Instructions
1. Standby Mode:
After plugging in and powering on, the machine will emit a "beep" and perform a self-test (red, yellow, and green LEDs flash once, others three times). Upon completion, the machine enters standby mode. The power icon will glow dimly red, and other indicators will be off.
2. Power On/Off Button ():
- To Turn On: Touch this button. The machine will enter automatic mode. The auto icon "A" and power icon will be highlighted in white, and other buttons will be dimly lit. The air quality indicator light ring and PM2.5 value will display. The Wi-Fi icon will flash for 30 seconds if not connected, or light up solid if connected.
- To Turn Off: Touch this button again, or press and hold for 3 seconds in any mode. The machine will shut down and enter standby, with the power icon glowing dim red.
3. Fan Speed Button (☰):
- Adjust Speed: Touch this button to cycle through low, medium, high, and super high speeds. Corresponding speed indicator lights will illuminate (1 dot for low, 2 for medium, 3 for high, 4 for super high).
- Manual Mode: In auto or sleep mode, pressing this button will switch to manual mode, and the wind speed button icon will be highlighted.
4. Sleep Button (⏸):
- Activate Sleep Mode: Touch this button. The sleep icon will be highlighted, and all panel indicators will turn off after 10 seconds.
- Exit Sleep Mode: Touch any button to wake up the panel indicators. The fan speed will remain at the sleep mode level.

The air purifier operating in sleep mode, highlighting features like 15dB operation and aromatherapy diffuse.
5. Auto Button (A):
- Activate Auto Mode: Touch this button. The auto icon "A" will be highlighted in white. The machine will automatically adjust fan speed based on real-time air quality.
- Air Quality Response:
- PM2.5 > 75: Fan operates at gear 4 (display panel will not show gear indicator).
- PM2.5 < 36: Fan operates at gear 2, gear 1, or sleep mode (display panel will not show gear indicator).

Real-time air quality display with color-coded indicators: Green (0-35 Particles - Excellent), Yellow (36-75 Particles - Moderate), Red (>75 Particles - Poor).
6. Timer Button (⏲):
- Set Timer: Tap this button to cycle through 1 to 12-hour intervals or disable the timer. The digital display will show "XH" (e.g., "2H"). The timer duration is visible for 10 seconds before reverting to PM2.5 readings.
- Timer Active:
- Single tap shows remaining time.
- Subsequent taps increase duration by 1-hour increments.
- The timer icon will glow white during operation.
- When the timer ends, the machine shuts down and enters standby mode, with the power icon glowing slightly red.
- Note: Timer settings (max 12 hours) can be adjusted via both the app and control panel.
7. Screen Off Button (☀):
- Touch this button to turn off all indicators on the panel.
- Touching any button will light up the indicators again, without changing the machine's operation mode.
8. Child Lock Button (🔒):
- To Lock: Press and hold this button for 3 seconds. The child lock icon will turn bright red, and the machine will enter child lock state. All panel buttons will be locked and unresponsive.
- To Unlock: Press and hold this button for 3 seconds. The child lock icon will turn slightly bright white, and all panel buttons will return to normal. Child lock can also be released by turning off the power and turning it back on.
- Note: The child lock can only be deactivated using the Child Lock button. Pressing and holding the power button will NOT shut down the device while in child lock mode.

Safety features including Tip-Over Protection (45° tipping automatic power off), Child Lock (prevents accidental touches), and Anti-bite design (durable braided wire).
9. Aromatherapy Function:
The Dhyala KJ03 Air Purifier includes an aromatherapy box. To use, open the aromatherapy box cover, place a few drops of your preferred essential oil onto the aromatherapy pad, and then close the cover. The scent will diffuse into the air during operation. (Essential oils are not included).

Illustration of how to add essential oils to the aromatherapy box for scent diffusion.
10. Power Recovery Function:
- From ON State: If power is lost and restored while the unit is ON, it will perform a self-check and automatically resume its previous operating mode. Timing and child lock settings will be reset.
- From Standby State: If power is lost and restored while the unit is in standby, it will perform a self-check and return to standby mode.
- From Sleep/Auto Mode: If power is lost and restored while in sleep or auto mode, it will perform a self-check and resume the running state it was in before the power outage. Timing, screen off, and child lock modes will be reset.
Maintenance
Cleaning Notice:
- Regularly clean the filter to remove dust, hair, and debris to minimize bacterial growth.
- When unused for extended periods, cover the top outlet to prevent dust accumulation on the grille.
Filter Replacement and Reset:
- Filter Life Indicator: When the filter usage reaches the set time (2160 hours), the filter icon will be highlighted in red to remind you to replace the filter. The Air Quality Indicator Light will breathe and flash.
- Replacing the Filter:
- Turn off and unplug the air purifier.
- Remove the filter cover and old filters.
- Install new filters, ensuring they are correctly seated.
- Replace the filter cover.
- Resetting Filter Life: After replacing the filter, press and hold the Filter button for 3 seconds to enter reset mode. The filter icon will light up red and flash for 10 seconds. Press and hold the Filter button again for 3 seconds within these 10 seconds. The air quality indicator ring and filter icon will flash 3 times, then the filter icon will turn slightly bright white, and the filter life will be reset. If the button is not pressed within 10 seconds, the setting mode will be exited.

The washable pre-filter can be easily cleaned under running water or with a vacuum cleaner to extend its lifespan and reduce costs.

Visual guide for replacing the air purifier filters.
Troubleshooting
Tip-Over Protection:
The device is equipped with a 45-degree tilt switch. If the unit tilts beyond 45 degrees, the fan will stop, and the digital indicator on the panel will continuously flash "EEE". No buttons will respond. To restore operation, unplug the power cord, place the machine in its normal upright position, and then reconnect the power. The device will return to its state before the error occurred.
Special Note:
To prevent the machine from operating when it has tipped over and is not in the normal upright position, this safety design requires that the adapter or bottom connector be unplugged, the unit be properly repositioned, and then power be reconnected before normal operation can resume.
Common Issues and Solutions:
| Phenomenon | Solution |
|---|---|
| The machine won't start. | Please make sure the device is powered off first, then check whether it has been installed correctly according to the installation steps, and then reconnect the power adapter. When the red power icon appears on the screen, the device can be turned on. If the problem still cannot be solved, please contact customer service. |
| The purifier is noisy. | Please check whether the filter packaging is removed and whether there is any foreign matter entering. |
| The purifier has a strong odor. | The filtered pollutants, water vapor, etc. accumulate on the filter, which may produce odor. Please check the filter status and replace the filter in time. |
| The equipment is operating normally, but the air volume is significantly reduced. | Please check whether there are any foreign objects blocking the air outlet and air inlet, and check whether the filter has been replaced as prompted. |
| The device did not remind me to replace the filter, and how can I replace it with a new one by myself. | After replacing a new filter, turn on the machine, press and hold the Filter button for 3 seconds to enter the reset mode. The filter icon lights up in red and flashes for 10 seconds. Press and hold the key again for 3 seconds within 10 seconds, the icon flashes 3 times, and the filter life is reset successfully. |
Specifications
| Attribute | Value |
|---|---|
| Product Name | Air Purifier |
| Model No. | KJ03 |
| Rated Voltage | DC 24V |
| Rated Wattage | 48W |
| Product Size | 12.2 × 6.69 × 16.22 inch (31 × 17 × 41.2 cm) |
| Net Weight/Gross Weight | 9lb (4.1 kg) |
| Power Cord Length | 72inch (183 cm) |
| HEPA Grade | H13 |
| Power (W) | 45W |
| Air Volume | Above 400m³/h (CADR 265 CFM) |
| Voltage | AC100~240V |
| Coverage Area | >61㎡ (Up to 3000 sq ft) |
| Wind Speed Settings | Six |
| Power Source | AC (Note: Source data indicated 'SOLAR', but given AC voltage, AC is assumed as primary power source.) |
For more details on coverage area and airflow, refer to the image below:

The Dhyala KJ03 covers up to 3000 sq ft with a CADR of 265 CFM (450 m³/h).
User Tips
- For optimal performance, ensure the air purifier is placed in a central location within the room, away from walls or furniture that might obstruct airflow.
- Regularly check the washable pre-filter and clean it as needed to maintain efficiency and extend the life of the HEPA filter.
- Utilize the Auto Mode for hassle-free operation, allowing the purifier to adjust fan speed based on real-time air quality.
- The Sleep Mode is ideal for nighttime use, providing quiet operation and turning off display lights for an undisturbed rest.
- If using the aromatherapy feature, ensure to use high-quality essential oils and clean the pad regularly to prevent residue buildup.
Warranty and Support
2-Year Limited Warranty:
The Dhyala KJ03 Air Purifier comes with a 2-year warranty against original defects in material and workmanship, when used for private household purposes in accordance with this instruction manual. This warranty covers all labor and parts necessary to ensure proper operating condition during the warranty period, at no extra cost.
What is Covered: This warranty applies only to purchases made from authorized Dhyala retailers and is valid only if the machine is used in the country where it was sold.
How to Claim: Please retain your proof of purchase (original receipt with purchase date and order number). To make a claim, contact Dhyala customer service. If your machine is not functioning properly or you have questions after reading this manual, contact us. We aim to reply within 24 hours on working days and provide a satisfactory solution.
Customer Support:
For technical support or warranty claims, please contact us via email:
Permanent technical support is available.
Additional Resources:
A PDF version of this user manual is available for download. You can access it here: User Manual (PDF)
FCC Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
- This device may not cause harmful interference, and
- This device must accept any interference received, including interference that may cause undesired operation.
Warning: Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
FCC Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body.