Powerful Large-room Purification
Clean air fast with high-performance airflow designed for large spaces. Ideal for living rooms, open layouts, and homes with pets, helping reduce dust, smoke, and everyday airborne pollutants.
See Your Air Quality in Real Time
Advanced PM1.0, PM2.5, and PM10 sensors monitor your air continuously. Color-coded display shows exactly how clean your air is, so you always know when it’s working.
True Hands-free Control
Control your air with just your voice, no WiFi needed. Use offline voice commands or the smart app to adjust settings, schedule timers, and manage air quality anytime, anywhere.
WiFi Smart APP Control
You can remotely control the device – turn it on/off, set a countdown timer for shutdown, adjust modes, set humidity, get notified of water shortage or tip‑over, and keep track of indoor air quality – all from your smartphone
Questions & Answers
Before you buy — common questions.
- With a 7L (1.85 gal) tank, the AEH800 runs for about 5–15 hours, depending on humidity and room conditions.
- In dry air (~30% RH), higher output (~1450 ml/h) provides around 5 hours of runtime. In moderate conditions (~55% RH), runtime is about 12 hours, and in higher humidity (~65% RH+), it can reach up to 15 hours or more.
- Actual runtime may vary based on environment and usage.
For best performance, we recommend using voice commands within about 3 meters (10 feet) of the unit. Response may vary depending on background noise levels and the clarity of the spoken command.
Yes. Sleep mode features a low-noise design – fan speed drops to as low as 500 RPM, the screen automatically dims, balancing effective purification with peaceful nighttime rest. Noise level ≤69 dB(A) – quiet operation that won't disturb you.
We recommend replacing the air filter every 6 to 8 months and the humidifier filter every 6 months for optimal performance. Clean the humidifier filter with water weekly and replace it if it appears yellow or moldy.
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| Model | AEH800 | AEH300 | AGH400 | APH320 |
| Coverage | 3500 ft² | 1200 ft² | 2000 ft² | 1500 ft² |
| WiFi Control | ✔ | ✘ | ✔ | ✔ |
| Auto Mode | ✔ | ✔ | ✔ | ✔ |
| Air Quality Sensor | ✔ | ✔ | ✔ | ✔ |
| Timer | 1-24 Hours | 1-24 Hours | 1-12 Hours | 1-12 Hours |
| UV-C Disinfection | ✘ | ✘ | ✘ | ✔ |
| Child Lock | ✔ | ✔ | ✔ | ✔ |
| Sleep Mode | ✔ | ✔ | ✔ | ✔ |
| Humidify | ✔ - Water Tank: 7L | ✔ - Water Tank: 1.5L | ✘ | ✘ |
| Dimension | 12.6 x 12.6 x 36.8 inches | 9.5 x 9.5 x 21 inches | 11.8 x 11.8 x 21.3 inches | 13 x 6.7 x 21.2 inches |
| Weight | 23.4 lbs | 7.3 lbs | 15 lbs | 10.6 lbs |
Why Airthereal
World-class design. Independently verified.
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Red Dot AwardRevive R800 · Product DesignWinner
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iF Design AwardAEH300 · 10,000+ entries · 131 jurors · BerlinWinner 2026
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Amazon's ChoiceMultiple air purifier modelsVerified
- H13 Medical Grade HEPA
- CARB Certified
- SGS Tested
- AHAM Verifide®
- TÜV Certified
- ETL Certified
- Energy Star
- Climate Pledge Friendly
- Founded
- 2018
- Particle Capture
- 99.97%
- Waste Reduction
- 90%
- Homes Served
- 1M+