Supported Models:

  • Core 300S – Custom firmware (no hardware modifications needed)
  • Core 400S – Custom firmware (no hardware modifications needed)
  • Vital 100S – Custom firmware (no hardware modifications needed)
  • LV-PUR 131S – Custom firmware + ESP32-C3 MCU upgrade + PM5003 sensor upgrade (hardware hack; plays Doom!)
  • Mini – Custom PCB, 3D-printed parts, and firmware (fully reversible modification)

Key Features Across All Models:

  • Full Home Assistant integration via native ESPHome API (no cloud required)
  • Fan control with Manual, Auto, and Sleep modes
  • CADR-based filter lifetime tracking with configurable replacement intervals
  • Filter low threshold binary sensor and one-touch reset button
  • Real-time air quality and PM2.5 monitoring
  • Display control and WiFi LED management

Getting Started:

See Free Levoit Project Documentation for complete details, including:

  • Installation Methods – 3 hardware approaches (reuse original ESP, dual ESP with switch, replace module)
  • UART Protocol Reference – Frame format, checksums, TLV encoding for Vital series, command/response structures
  • Model-Specific Guides – Disassembly, flash procedures, Quick Facts (MCU versions, speeds, CADR ratings) for each model
  • Component Integration – Entity types, filter tracking calculations, configuration examples