Smart Register Booster Fan for 4" x 10" Vent Holes - 10-Speed Quiet Vent Booster Fan with Thermostat & Remote Control, Improves Heating/Cooling, Auto-Adjustable Louver, for Floor Wall Ceiling — Open-Box, 22% Off

HELP FIX ROOMS THAT FEEL TOO HOT OR TOO COLD: This booster fan helps move more heated or cooled air into bedrooms, basements, offices, and upstairs rooms with weak airflow, making hard-to-balance spaces feel more comfortable year-round. With a built-in smart thermostat and temperature sensor, the fan turns on or off based on your selected temperature, and the memory function restores previous settings after restart REMOTE-CONTROLLED BLADE ADJUSTMENT WITH 4 PRESET ANGLES: Press and hold the Fan button on the remote to adjust the blade angle through four preset positions (10°/30°/60°/90°). It is a more convenient way to direct airflow without bending down to use a front roller. When closed, the blades help reduce dust buildup and help keep small debris from entering the duct QUIET, SIMPLE CONTROL FOR EVERYDAY COMFORT: Featuring a clear LCD display and remote control, this fan offers 10 speed settings, 2H/4H timer options, easy fan speed & temperature adjustment. In Sleep Mode, the screen dims to reduce glare, and noise levels can run as low as 18 dB, making it a great fit for bedrooms, nurseries, home offices, and other quiet spaces EASY INSTALLATION WITH FIT REMINDER: Please measure your vent opening carefully before purchase to ensure a proper fit. Designed only for standard 4" x 10" floor, wall, or ceiling vents, this unit has a rear casing size of 3.94" x 9.61". USB powered for easy setup, it installs without complicated wiring (USB adapter not included) DURABLE ABS BUILD WITH DIY AROMA COMPARTMENT: Made from heat-resistant ABS for long-lasting durability and stable performance, this 4" x 10" register booster fan also includes a built-in aroma compartment. Just add your favorite essential oil to enjoy a fresher room atmosphere while the fan runs, combining stronger airflow with a light, pleasant fragrance

If one room in your home never feels as comfortable as the others, weak airflow may be keeping heated or cooled air from reaching that space the way it should. This 4" x 10" register booster fan is designed to improve airflow in bedrooms, basements, offices, upstairs rooms, and other problem areas, helping reduce hot and cold spots and create more balanced comfort throughout the home.

This version offers more convenient blade adjustment by remote. Press and hold the Fan button on the remote to switch through four preset blade angles (10°/30°/60°/90°), making it easier to direct airflow without bending down to adjust the vent by hand. When closed, the blades also help reduce dust buildup and help keep small debris from entering the duct.

With a built-in smart thermostat and temperature sensor, the fan turns on or off based on your selected temperature in Summer Mode or Winter Mode, and the memory function restores previous settings after restart. A clear LCD display, remote control, 10 speed settings, 2H/4H timer options, Sleep Mode, and noise levels as low as 18 dB make it easy to enjoy quieter, more comfortable airflow every day.

Designed only for standard 4" x 10" floor, wall, or ceiling vents, this 5V USB powered unit installs without complicated wiring. Durable heat-resistant ABS construction, a rear casing size of 3.94" x 9.61", and a built-in aroma compartment complete a practical comfort upgrade for your home.