LEVOIT
LEVOIT Core 400S Smart True HEPA Air Purifier
LEVOIT's best for allergies — medical-grade H13 HEPA, smart controls, and a laser dust sensor for precise air quality readings.
$190at time of review
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Our Review
The Core 400S is LEVOIT's allergy-focused flagship. Its medical-grade H13 HEPA filter captures 99.97% of particles at 0.3 microns, and the laser dust sensor provides precise PM2.5 readings displayed on the unit and in the app. Auto mode uses these readings to adjust fan speed in real-time — it noticeably ramps up when you cook or vacuum, then quietly settles back down. The VeSync app offers scheduling, air quality history, and voice control via Alexa/Google. At $190, it's the most feature-complete purifier under $200 for allergy sufferers.
At a Glance
Filter TypeTrue HEPA H13
Cadr Smoke260
Cadr Dust261
Cadr Pollen265
Coverage Sqft403
Noise Min Db24
✅ What We Like
- Laser dust sensor is more accurate than LED-based sensors
- App shows air quality trends over time
- Auto mode is responsive and effective
- Strong brand with proven reliability
⚠️ Worth Noting
- Coverage area (403 sq ft) is smaller than the Vital 200S
- Carbon filter is basic for odors
- Laser sensor can be sensitive to steam/humidity
- Night light can't be fully disabled
Key Features
- Medical-grade H13 HEPA filter
- Laser dust sensor with PM2.5 display
- VeSync app with air quality history
- Auto mode based on real-time readings
- Alexa and Google Assistant compatible
Full Specifications
| cadr_dust | 261 |
|---|---|
| cadr_pollen | 265 |
| cadr_smoke | 260 |
| coverage_sqft | 403 |
| energy_star | True |
| filter_type | True HEPA H13 |
| noise_max_db | 52 |
| noise_min_db | 24 |
| smart_features | True |
| warranty_years | 2 |
Best For
- Allergies
- Smart Home
- Bedroom
Ready to buy the LEVOIT Core 400S Smart True HEPA Air Purifier?
$190 at time of review
Check Price on Amazon →