4x10 inch ventilation grille reinforcement fan – 10 speeds, LCD screen, remote control, quiet (18 dBA)

🌬️ General Description: Silent ventilation booster for HVAC registers, ideal for improving airflow in heating and cooling ducts. Designed for 4×10 inch (10×25 cm) vents, it integrates discreetly into the wall or floor. 10 speeds, smart LCD display, remote control included — everything for optimal comfort, precise airflow control, and a soothing atmosphere thanks to the aromatherapy function. ⚙️ Technical Specifications Material: High-strength ABS Speeds: 10 adjustable levels (1 to 10) Modes: Winter / Summer / Fan only Timer: 2 h or 4 h (activated by remote control) Noise level: only 18 dBA Motor: DC PWM, 3600 rpm, double ball bearings Power supply: 100–240 V ~ (North American standard) Contents: 1 booster, 1 433 MHz remote control, 4 cotton filters, 2 screws, 2 wall plugs, 1 instruction manual 🔧 Installation Intuitive installation in less than 15 minutes: attach the booster to a 4×10 inch (10×25 cm) vent, connect the power supply, and adjust the position. No special tools required — perfect for DIY beginners or experienced users. 💡 Operation: Control everything from your couch: speed, mode (heating/cooling), timer, or essential oil diffusion via the included aroma pads. The LCD screen automatically adjusts to the room temperature for consistent comfort — silently and effortlessly. 📦 Other information: The digital display automatically turns off after 1 minute of inactivity. The remote control requires 2 AAA batteries (not included). Compatible with standard HVAC systems — no specific brand required: universal for 4x10-inch registers.