Huawei KJ400F-C400i Air Purifier: H13 HEPA filter with 99.95% efficiency for 0.3-0.5um particles
For families in homes with pets or young children, managing indoor air quality is a daily concern. This air purifier offers more than just filtration; it provides a healthier living environment by actively removing allergens and pollutants. The smart filter management system uses NFC tags to guide you through correct installation and track usage, ensuring optimal performance without guesswork.
You can monitor air quality in real-time through the app, with alerts for formaldehyde and particulate levels. The purifier integrates seamlessly with your smart home via Huawei's ecosystem, allowing voice control through compatible devices. Its H13 HEPA filter captures 99.95% of particles as small as 0.3 microns, while the dual formaldehyde removal system works efficiently in spaces up to 48 square meters. This unit helps you breathe easier, whether you're working from home or settling in for the night.
Features
- Dual formaldehyde removal system with 99.9% per hour removal rate
- Smart home integration with Huawei ecosystem and HarmonyOS compatibility
- Nanoelectricity field active killing technology for sterilization
- Real-time filter life display and easy replacement process
- Maximum noise of 64dB and energy efficiency level 2
- H13 HEPA filter with 99.95% efficiency for 0.3-0.5um particles
General specs
- Brand: Huawei
- Model: KJ400F-C400i
- Seller: Joom
- ID: 68d7f4c768c64001c23fe7ae
- Weight: 11.02
- Wattage: 45.0
- Dimensions: 9.84, 9.84, 19.69
- Filter Type: HEPA H13
- Noise Level: 28.0, 64.0
- Power Source: Corded Electric
- Air Treatment: Ionizer
- Coverage Area: 430.56
- Certifications: CE, FCC, RoHS
- Control Method: App
- Voice Assistant: Amazon Alexa, Google Assistant
- OS Compatibility: Android, iOS
- App Compatibility: Mi Home
- Filtration Stages: 3
- Minimum Particle Size: 0.3
- First listed by seller: 12/10/25
If you are interested in more details, you can find full information on the seller's page.
Shipping options
United States
Comparison with similar products
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
Huawei KJ400F-C400i White
|
AIRROMI A2005-Purple HEPA filter captures 99.97% of particles
|
Jafända JF239 Silver Smart WiFi and Alexa app control
|
ECOSELF HAP602 White Covers up to 2400 sq ft every 30 minutes
|
DAYETTE AP302 Black
|
MERONTE MR7566-WF White Covers up to 3600 square feet
|
|
| Brand | Huawei | AIRROMI | Jafända | ECOSELF | DAYETTE | MERONTE |
| Model | KJ400F-C400i | A2005-Purple | JF239 | HAP602 | AP302 | MR7566-WF |
| Color |
|
|
|
|
|
|
| Rating |
|
|
|
|
|
|
| Price | $297.85 | $28.88 | $99.99 | $148.99 | $99.99 | $119.99 |
| Seller | Joom | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | December 16, 2025 | December 6, 2025 | December 9, 2025 | December 6, 2025 | December 9, 2025 | December 9, 2025 |
| Weight | 11.02 | 7.054792384 | 7 lb | |||
| Dimensions | 9.84, 9.84, 19.69 | 299.99999994, 379.99999999, 159.99999999 | 299, 400, 145 | 220.98 mm, 370.84 mm, 220.98 mm | 340, 643, 340 | |
| Filter Type | HEPA H13 | True HEPA | HEPA | True HEPA | True HEPA | |
| Noise Level | 28.0, 64.0 | 20 | 20 | 22 dB | 23 | |
| Air Treatment | Ionizer | Activated Carbon | Activated Carbon | Activated Carbon | ||
| Coverage Area | 430.56 | 1100 | 2400 | 2200 ft² | 3600 | |
| Certifications | CE, FCC, RoHS | AHAM | AHAM, CARB, CE, DOE, Energy Star, EPA, ETL, FCC, RoHS, UL | |||
| Control Method | App | App, Voice | App, Voice | App, Voice | ||
| Voice Assistant | Amazon Alexa, Google Assistant | Amazon Alexa | Amazon Alexa, Google Assistant | Amazon Alexa, Google Assistant | ||
| OS Compatibility | Android, iOS | Android, iOS | Android, iOS | Android, iOS | ||
| App Compatibility | Mi Home | Mi Home, Nuwave Connect, SleekPoint | Mi Home | |||
| Filtration Stages | 3 | 3 | 3 | 4 stages | 4 | |
| Minimum Particle Size | 0.3 | 0.3 | 0.1 µm | |||
