DEWENWILS 4'' x 12'' Quiet Register Booster Fan, 5-Speed Vent Fan Booster — Open-Box, 5% Off

[Fix Hot Upstairs Rooms & Cold Corners] Tired of rooms that never feel right? This DEWENWILS register booster fan works with your HVAC system to push cooled or heated air farther into hard-to-reach spaces. With up to 140 CFM airflow, it helps reduce uneven temperatures—so upstairs bedrooms, corners, and distant rooms feel more balanced without forcing your HVAC to work harder.

[Runs Only When Your HVAC Runs—No Wasted Energy] Built-in temperature sensing turns the vent fan booster on when airflow starts and off when it stops—so it works with your system, not against it. No need to leave it running all day or keep adjusting settings. Set it once, and it takes care of the rest.

[Quiet Enough for Sleep, Strong Enough to Feel] Designed with dual ball-bearing motors for smoother, low-friction operation, this AC vent booster delivers noticeable airflow without disruptive noise. The display-off night mode keeps your room dark and undisturbed—ideal for bedrooms, nurseries, and nighttime use.

[Simple Control—From Bed, Couch, or Anywhere] Adjust speed, modes, and timer with the remote or onboard buttons—no bending down to air vent fan. A clear display shows your settings at a glance, and built-in memory restores your last setup after power loss. No Wi-Fi, no apps—just simple, reliable control.

[Drop It In, Plug It In, Done in Minutes] Fits standard 4” x 12” vents—just place it in and plug it in. No tools, no wiring, no remodeling. The long power cord gives you flexible placement, while the compact, flush design blends cleanly into your space. Please measure your vent size before purchase.

Enhance your home’s comfort with the DEWENWILS 4" x 12" Quiet Register Booster Fan. Designed for easy installation on floor or wall vents, this AC vent booster helps circulate heating and cooling more efficiently, reducing hot and cold spots in any room. Equipped with a 5-speed fan and a smart intelligent thermostat, it automatically adjusts airflow to maintain your desired temperature. The included remote control allows convenient operation from anywhere in the room. Quiet, energy-efficient, and stylish in white, this vent fan booster is ideal for improving HVAC performance and keeping your home comfortable year-round. Specifications - Compatibility: Fits 4"×12" floor & wall HVAC registers - Dimensions: 350×141×50 mm (unit); 247×100 mm (base) - Power: Adapter 100-240V~50/60Hz, 12V/15W; fan 6W, cord 2.5m - Fan: 2×9225 dual ball bearing, 3600 RPM, 120 CFM, ≤55 dB(A) - Control: Remote 433 MHz, ≥10 m range; 6-speed, manual & auto modes, °C/°F display Packing List - 1 × Register Booster Fan Main Unit - 1 × Power Adapter - 1 × Remote Control - 1 × User Manual