Quick verdict
The LEVOIT Core 400S offers a good balance of air purification performance, price, and Home Assistant integration via VeSync. You get fan speed control and PM2.5 readings in Home Assistant, though everything goes through the cloud. It works in manual mode offline, but smart features require the VeSync cloud.
Standout: Home Assistant integration via VeSync with PM2.5 air quality sensor data and fan speed control.
Last checked: 2026-03-25