Supports HarmonyOS ecosystem with NFC touch activation.
Performance:
Filter System:
6-stage filtration including:
1. Pre-filter for hair, dust, and large particles
2. High CTC activated carbon for formaldehyde, benzene, and TVOC adsorption
3. Micron active silica for formaldehyde interception
4. Imported antibacterial fiber to inhibit bacteria
5. Lysozyme for bacteria and virus inactivation
6. H13 grade HEPA filter capturing 0.1μm fine particles
Intelligent Features:
NFC touch to activate smart functions
Energy-saving mode extends filter life by 30%
Sleep mode with ultra-quiet operation (noise as low as 20 dB)
Real-time indoor air quality tracking with PM2.5, temperature, humidity, and TVOC sensors
Air quality trajectory and status displayed on screen
Applicable Pollutants:
Particulate matter (PM2.5, dust, pollen, pet dander)
Formaldehyde and other harmful gases (benzene, TVOC)
Bacteria and viruses (99.99% filtration and inactivation)
Odors and allergens (dust mites, secondhand smoke)
Usage Recommendations:
Ideal for apartments, children's rooms, bedrooms, and multi-scenario use
Suitable for users seeking strong purification, formaldehyde removal, and smart home integration
Maintenance:
Power off and unplug before cleaning
Clean exterior with a damp soft cloth
Remove and air-dry filters; do not wash with water
Use vacuum or cool air blower to clean sensor and filter compartments
Follow instructions for filter replacement and reset
Additional Models Comparison:
720 Smart Air Purifier 3i is compact and cost-effective for up to 48m²
Other models available for larger spaces and specialized needs (e.g., pet owners, whole-house purification)
Certifications & Standards:
H13 HEPA filter grade
Tested CADR values verified by third-party labs
| Width | 28.8 |
| Height | 52.8 |
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| NetWeight |
| 4.78 |
| Brand | 720, Hongmeng Zhixuan (HarmonyOS Select) |
| Brand Description | HarmonyOS Select is Huawei’s premium ecosystem product brand, co-created with selected partners to deliver smart, beautiful, and trustworthy HarmonyOS lifestyle solutions. |
| Product Name | 720 Smart Air Purifier 3i |
| Applicable Area | Up to 48m² |
| Particulate Matter CADR | 400 m³/h (nominal) |
| Formaldehyde CADR | 150 m³/h (nominal) |
| Purification Cycle | Approximately 3.5 minutes per cycle in 48m² space |
| Noise Level | 29.3 dB(A) (sleep mode) to 65 dB(A) |
| Power Consumption | 40W |
| Voltage | 220V~ |
| Dimensions | 240 x 240 x 473 mm |
| Weight | Approx. 3.7 kg |
| Number of Fan Speeds | 4 |
| Number of Buttons | 3 |
| Display | Screen shows air quality, PM2.5 levels, fan speed, mode, and device status |
| Filter lifespan | 6-10 months (daily cost approx. 0.73 RMB) |
| Filter replacement | Reset via device buttons or Huawei Smart Life app |
| Note | All data are based on Huawei’s internal testing and third-party verification. Specifications are subject to change without notice. |