DEWENWILS Quiet Register Booster Fan, 4" x 12", 140 CFM, Remote Control-HVEF21A

• [Dual Fans High Airflow] DEWENWILS register booster fan is equipped with dual high-performance fans to supercharge your HVAC system's airflow, pushing conditioned cool or warm air deep into hard-to-reach spaces like upstairs bedrooms, home offices, and basements. Say goodbye to frustrating hot spots in summer and cold drafts in winter, and enjoy consistent, cozy comfort in every room of your home without overworking your heating or cooling system
• [Fully Closed Design] Unlike ordinary vent fans, this quiet vent fan booster features a fully closable louver system that seals the vent completely when not in use. It blocks unwanted cross-airflow, humid summer moisture, and frigid winter drafts, boosting your home's insulation, reducing energy waste, and lowering your monthly utility bills year-round while keeping your space clean and draft-free
• [180 Air Direction] With 180 fully adjustable louvers, you can precisely direct heated or cooled air exactly where you need it most-whether targeting a specific seating area, a corner office, or a large living space. The flexible airflow design lets you customize your comfort to suit any room or activity, ensuring every corner of your home gets the right amount of conditioned air
• [Smart Temperature Control] Built with a precision temperature sensor, this ac vent booster automatically turns on, adjusts speed, and shuts off based on real-time duct temperature, eliminating the need for manual adjustments. It optimizes your HVAC efficiency, cuts down on unnecessary energy consumption, and maintains your home temperature effortlessly, with a memory function that saves your preferred settings for next use
• [Quiet & Long-Life Motor] Powered by a premium dual ball bearing motor, this HVAC smart vent delivers powerful airflow while running at a whisper-quiet decibel level, suitable for bedrooms, nurseries, and home offices. It won't disrupt your sleep, work, or family time, and the durable motor ensures long-lasting, reliable performance for years of consistent comfort
• [Remote Control & Timer] Enjoy tool-free, DIY installation in minutes, plus full control at your fingertips with the included remote. The programmable countdown timer lets you set the air vent booster fan to run for a specific duration, adding extra convenience and energy savings. Adjust speed, airflow direction, and temperature settings from anywhere in the room, making comfort effortless for the whole family
• [Standard Fit & Easy Installation] Designed to fit standard 4 inch by 12 inch register openings, this booster fan installs quickly without professional help. Includes all necessary mounting hardware, power adapter, remote control with batteries, and detailed user manual for straightforward setup on floor, wall, or room vents

Shipping
Free shipping on all orders. Products are shipped from U.S. local warehouses for faster and more reliable delivery.
Learn more in our Shipping Policy.

Returns
If you’re not satisfied with your purchase, returns are accepted according to our return guidelines.

Please review our Return Policy for details.