#2 · Air Purifiers
Levoit Core 400S Smart True HEPA
Levoit
87.4/ 100 · n=902 reviews
Medium confidence · 3 sources
A smart True HEPA air purifier with 360° air intake and a 3-stage filter that captures particles down to 0.3 microns. An AirSight Plus laser sensor reads PM2.5 and auto-adjusts fan speed, cleaning rooms up to 83 m² twice an hour with full VeSync app and voice control.
Specifications
- Filter type
- 3-stage: pre-filter, True HEPA, high-density activated carbon
- Coverage
- 166 m² once/hour; 83 m² twice/hour
- CADR
- 231 CFM (≈393 m³/h)
- Noise
- 22–52 dB
- Modes
- Auto mode, Sleep mode, manual fan speeds
- Smart features
- VeSync app, Alexa & Google Assistant, AirSight Plus laser PM2.5 sensor, scheduling, air-quality graphs, filter-life tracking
- Dimensions
- 27.4 × 27.4 × 51.9 cm (D × W × H)
- Filter life
- Replace approx. every 12 months
- Warranty
- 2 years