Product Overview Read this manual carefully before use, and retain it for future reference. Note: Illustrations of the product, accessories, and user interface in this user manual are for reference purposes only. The actual product and functions may vary due to product enhancements. Top Grille Temperature & Humidity Sensor Touchscreen Laser Particle Sensor 激光颗粒物传感器 LASER PARTICLE SENSOR Filter Compartment Cover Power Cord Port Front Rear 2