About This

[Fit 4” x 10” Register Holes Only] – DR.PREPARE vent fan booster specifically designed to fit only 4'' x 10'' duct openings, including a 12-foot power cord, 2 screw sets, and a clear user manual and video for easy installation on floors or walls without complex steps.
[Smart Home Integration for Effortless Comfort] DR.PREPARE register booster fan doesn't cool or heat rooms, but rather automatically boosts airflow from HVAC system by sensing HVAC duct temperature, helping to maximize home comfort with less cost. In heating or cooling mode, it triggers the fan to start and stop for optimal air circulation with seasonal adjustments. Moreover, the vent booster fan also has the fan mode with 10 speeds and a 360° remote.
[Powerful Dual Fan Design] – Upgraded 7-blade fans provide up to 120 CFM. Perfect for installation on wall or floor (not for ceiling mounting) in bedrooms, living rooms, attics, basements, or any room with uneven temperatures or located far from HVAC systems. Please note that the air duct fan is corded electric, not battery-powered.
[Quiet & No Light Disturbance] The motor operates at noise levels as low as 18 dBA (at speed 1), which is exceptionally quiet. Noise gradually increases as airflow strengthens. What's more, turning off the screen by holding ON/OFF button on the remote won't disturb your sleep, making it ideal for use in bedrooms or other quiet environments.
[Energy-Efficient & User-Friendly] Equipped with a 6W energy-efficient motor and automatic temperature sensing, this device optimizes energy usage while maintaining comfort. The convenient remote control works seamlessly from any angle, and with a simple long press on the MODE button, you can easily switch between ℃ and ℉ for personalized temperature preferences.
[Warm Tip] If the set temperature is close to ambient temperature, the fan may cycle on/off. For stable operation, increase the temperature difference between fan and ambient temp.