The Best Register Booster Fan of 2023

MAXIMIZE AIRFLOW - Enhance the performance of your existing furnace or air conditioner by boosting airflow up to 85%. Enhance your airflow--and comfort!

SAVE MONEY - Maximize the heating or air conditioning from your forced-air system with a minimum increase in energy use. Unit continues to run after your forced-air shuts off, pulling every bit of heat or cold air into your home.

QUIET OPERATION - Quiet, 3-speed dual fans increase airflow without excess noise.

EASY INSTALLATION - This unit drops directly into a standard 4" x 10" register without any modification. Optional adaptor available to purchase for wall installation. Not recommended for ceiling vents.

SET AND FORGET - Unit automatically switches on when airflow is sensed. All you have to do is set the fan speed and desired temperature.

Easy to Install, Easy to Use - Easy DIY setup. install the device into your home’s vent within a few minutes.

Quiet Smart Register Booster Fan - Whisper quiet operation that won’t wake you up at night

Room level Temperature settings (Microzoning) - Set your desired temperature per room or area

Energy Saving - Save on average 30% on your HVAC energy bill (15% on overall energy bill)

Adjustable Fan Power via the app - It's so effective we've included a dial to control the air circulation on the app in case you get even more (or less) than you need

iOS & Android App - Choose between 4 different operation modes (Auto, Eco, ON/OFF) using the app. The firmware is always updated over the air, when WiFi is connected.

WiFi Enabled - Connect to WiFi in order to benefit from all the features using the app. No Wifi? No problem, drop your fan in your vent. It automatically syncs with your HVAC, by default in "Energy Saving" mode.

Smart Sync with all thermostats - No matter if you have a smart or conventional thermostat, your device connects to them all. ecobee and Nest compatible.

Choose between 4 different operating modes (Auto, Eco,ON & OFF) based on your energy saving and temperature requirements

Barely Visible, Highly Effective - Smart Booster fan sits under your existing vent grill and boosts the air when you need it without changing the look of your room, keep using your existing grills.

A quiet fan system designed for improving wall and floor register airflow from HVAC systems.

Programmable LCD controller with heating and cooling thermostat, and automated fan speeds.

Premium anodized aluminum frame with CNC-machined detailing and a brown bronze finish.

Features stator-blade fans which can deliver strong airflow from high static-pressure ductwork.

Fits ONLY 6 x 12 in. Registers | Airflow: 160 CFM | Noise: 20 Dba | Includes Wall Adapter

A quiet fan system designed for improving wall and floor register airflow from HVAC systems.

Programmable LCD controller with heating and cooling thermostat, and automated fan speeds.

Premium aluminum frame with CNC-machined detailing, painted with a matte-white finish.

Features stator-blade fans which can deliver strong airflow from high static-pressure ductwork.

Fits ONLY 6 x 10 in. Registers | Airflow: 120 CFM | Noise: 18 Dba | Includes Wall Adapter

A quiet fan system designed for improving wall and floor register airflow from HVAC systems.

Programmable LCD controller with heating and cooling thermostat, and automated fan speeds.

Premium aluminum frame with CNC-machined detailing, painted with a matte-white finish.

Features stator-blade fans which can deliver strong airflow from high static-pressure ductwork.

Fits ONLY 6 x 12 in. Registers | Airflow: 160 CFM | Noise: 20 Dba | Includes Wall Adapter

A quiet fan system designed for improving wall and floor register airflow from HVAC systems.

Programmable LCD controller with heating and cooling thermostat, and automated fan speeds.

Premium anodized aluminum frame with CNC-machined detailing and a brown bronze finish.

Features stator-blade fans which can deliver strong airflow from high static-pressure ductwork.

Fits ONLY 4 x 10 in. Registers | Airflow: 120 CFM | Noise: 18 Dba | Includes Wall Adapter

A quiet fan system designed for improving wall and floor register airflow from HVAC systems.

Programmable LCD controller with heating and cooling thermostat, and automated fan speeds.

Premium aluminum frame with CNC-machined detailing, painted with a matte-white finish.

Features stator-blade fans which can deliver strong airflow from high static-pressure ductwork.

Fits ONLY 4 x 10 in. Registers | Airflow: 120 CFM | Noise: 18 Dba | Includes Wall Adapter

A quiet fan system designed for improving wall and floor register airflow from HVAC systems.

Programmable LCD controller with heating and cooling thermostat, and automated fan speeds.

Premium aluminum frame with CNC-machined detailing, painted with a matte-white finish.

Features stator-blade fans which can deliver strong airflow from high static-pressure ductwork.

Fits ONLY 4 x 12 in. Registers | Airflow: 120 CFM | Noise: 18 Dba | Includes Wall Adapter

A quiet fan system designed for improving wall and floor register airflow from HVAC systems.

Programmable LCD controller with heating and cooling thermostat, and automated fan speeds.

Premium anodized aluminum frame with CNC-machined detailing and a brown bronze finish.

Features stator-blade fans which can deliver strong airflow from high static-pressure ductwork.

Fits ONLY 4 x 12 in. Registers | Airflow: 120 CFM | Noise: 18 Dba | Includes Wall Adapter

A quiet fan system designed for improving wall and floor register airflow from HVAC systems.

Programmable LCD controller with heating and cooling thermostat, and automated fan speeds.

Premium anodized aluminum frame with CNC-machined detailing and a brown bronze finish.

Features stator-blade fans which can deliver strong airflow from high static-pressure ductwork.

Fits ONLY 6 x 10 in. Registers | Airflow: 120 CFM | Noise: 18 Dba | Includes Wall Adapter