LEVOIT Core 400S Smart Air Purifier

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.

Notes last checked Mar 25, 2026.

Compatibility snapshot

Why it stands out

• official Home Assistant VeSync integration provides fan speed, mode, and air quality data
• strong HEPA filtration for medium rooms at a competitive price
• built-in PM2.5 laser sensor with real-time air quality readings

Reasons to hesitate

• Home Assistant integration is cloud-based via VeSync - no local control
• auto mode can be overly aggressive, ramping fan speed frequently
• replacement filters are a recurring cost

Best for

• Home Assistant users who want affordable smart air purification with cloud-based integration
• medium rooms that need effective HEPA filtration with air quality monitoring

Avoid if

• local control without cloud dependency is a strict requirement
• you want a fully local Zigbee air purifier - look at the IKEA STARKVIND instead

Privacy and local-control notes

Uses VeSync cloud for smart features. Home Assistant integrates via the VeSync integration which communicates through the cloud API. The purifier works in manual mode without WiFi.

Home Assistant support: supported · integration path: VeSync (cloud API).

Buying reality check

Price notes: Competitively priced for a smart HEPA air purifier with air quality sensing. Replacement filters are reasonably priced.

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