Quiet Register Booster Fan Fits Duct Opening 4" x 12" (White) 10 Speeds Remote Control, 3 Modes, Cooling/Heating - Vent Air Temp Triggered Auto On/Off, Power-off Memory, Corded Electric

A quiet fan system designed to improve airflow from wall and floor registers in HVAC systems; ensures every dollar spent on your electricity bill contributes to enhanced comfort; as a year-round practical device, this Register Booster Fan also assists during winter months.
SMARTER: Featuring a high-sensitivity temperature sensor and a custom-designed smart chip, the fan automatically starts and stops based on your preferences, optimizing indoor temperature balance and energy savings - no frequent adjustments; no need for a gimmicky APP - no extra load on your nearly full phone.
QUIETER: Enhanced by a team with 22 years of experience, the high-static-pressure PWM motor delivers efficiency (up to 120 CFM airflow) while reducing noise (as low as 18 dBA), supporting restful sleep. Want even less noise? Simply decrease the fan speed (10 levels adjustable).
EASIER: Simple installation, no professional help required. Refined setup steps, based on input from 1, 000 initial users, make it simpler than rivals; minimalist remote control design prevents confusion with panel button operations; ->>> IT MUST BE PLUGGED INTO AN OUTLET (wall adapter & 12 ft cord included).
MORE TRUSTWORTHY: Honest. Efficient. Transparent. This product focuses on register booster fans, dedicated to ensuring you receive the expected value and support. SIZE MATTERS! To pick the correct size, first take off the existing vent and measure the DUCT OPENING. Then, match your measurements with "PRODUCT SIZE" listed on this page. >>> The models of this, or any other, booster fan are classified by the size of the DUCT OPENING (for example, 4" x 12"), not the face of the vent cover. Before buying, please remove the old vent cover and measure the duct opening. Confirm that the duct opening has sufficient space for the product neck (Length x Width x
Insertion Depth: 9.72" x 3.93" x 1.96"; check for obstructions, such as steep inward taper, that could prevent the neck from fitting), and ensure the product face ( 13.77" x 5.51" ) fully covers the duct opening. >>> PRODUCT SIZE OF MODEL 4" x 12": Neck
Insertion Depth: 1.96" - Neck (Length x
Width): 9.72" x 3.93" - Face (Length x
Width): 13.77" x 5.51" (The neck is the part that goes into the vent hole, while the face is what will actually cover). >>>
USAGE SCENARIOS AND LIMITATIONS: A register booster fan is intended to supplement your home's HVAC system. In line with our principles of honesty and efficiency, we
aim to be clear: If your ducts are not properly sealed or insulated, the fan may not improve your room's comfort as anticipated