---
product_id: 629887447
title: "Quiet Register Booster Fan Fits 4\" x 12\" Register Holes, 10-Speed Smart Heating Cooling AC Vent Fan with Remote Control and Thermostat Control - Black"
brand: "biowind"
price: "$166"
currency: NZD
in_stock: true
reviews_count: 12
category: "Biowind"
url: https://www.desertcart.nz/products/629887447-quiet-register-booster-fan-fits-4-x-12-register-holes
store_origin: NZ
region: New Zealand
---

# 120 CFM airflow 18 dB whisper-quiet 10-speed remote control Quiet Register Booster Fan Fits 4" x 12" Register Holes, 10-Speed Smart Heating Cooling AC Vent Fan with Remote Control and Thermostat Control - Black

**Brand:** biowind
**Price:** $166
**Availability:** ✅ In Stock

## Summary

> 🌬️ Elevate your air game — smart, silent, and seriously cool.

## Quick Answers

- **What is this?** Quiet Register Booster Fan Fits 4" x 12" Register Holes, 10-Speed Smart Heating Cooling AC Vent Fan with Remote Control and Thermostat Control - Black by biowind
- **How much does it cost?** $166 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/629887447-quiet-register-booster-fan-fits-4-x-12-register-holes)

## Best For

- biowind enthusiasts

## Why This Product

- Trusted biowind brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Customizable Airflow:** 10-speed fan settings let you dial in the perfect breeze from anywhere with remote control.
- • **Whisper-Quiet Comfort:** Ultra-quiet 18 dB operation keeps your space peaceful without sacrificing airflow.
- • **Sleek, Seamless Design:** Premium anodized aluminum frame fits flush in 4"x12" vents for a modern, minimalist look.
- • **Energy-Smart Efficiency:** Maximizes HVAC output while cutting energy costs—comfort that pays for itself.
- • **Precision Climate Control:** Smart thermostat syncs to balance your home’s temperature perfectly.

## Overview

The BIOWIND Quiet Register Booster Fan is a compact, energy-efficient ventilation solution designed to enhance HVAC airflow through 4"x12" vents. Featuring a powerful 120 CFM airflow, whisper-quiet 18 dB noise level, and a 10-speed remote-controlled fan with smart thermostat integration, it ensures even room temperatures and improved comfort. Its premium anodized aluminum frame offers a sleek, flush installation, making it ideal for modern homes seeking smarter climate control and lower energy bills.

## Description

BIOWIND Quiet Register Booster Fan Fits 4" x 12" Register Holes, 10-Speed Smart Heating Cooling AC Vent Fan with Remote Control and Thermostat Control - Black - desertcart.com

Review: Works Great, Easy Installation - I was a bit skeptical of this item at first, had a different product years ago that didn't seem to help. But the second story in our home tends to run 3-5 degrees warmer in the summer than the main floor where the thermostat is located and took the chance that this may help. Installation was quite easy, just make sure you get the right size, loved that they had a variety of size choices unlike many other competitors. I admit, it took me a few minutes to understand how to lock in the settings correctly, but got them eventually. The highest fan speed is a bit noisy, but we are a fan family and it's more just like background white noise. And we'll take the noise because the velocity with which it pulls the air is quite strong, you can feel it from several feet away! We are very happy with the unit, when the AC is running, it cools the room to the exact same temperature as the thermostat is set, even a degree lower sometimes! That being said, you have to understand how it works. You program the cooling temperature lower than the thermostat setting by a few degrees, but not colder than the temperature of the air when the AC is blowing. The fan should be off until the AC starts blowing, and once it senses colder air, the fan turns on. This means that when the AC is actively blowing, it makes a significant difference in the room temperature. However, if there are longer periods when the AC is not blowing, the room temperature will creep back up because the unit is off (as it should be since it would then be pulling in hotter air just sitting in the vents). Just a word of caution so you have realistic expectations. My only minor complaint is that it does seem to take a couple minutes to turn on after the AC starts blowing, and stays on for a couple minutes after the AC clicks off. But it's a minor issue and does not seem to detract from overall performance.
Review: They Work!! - Our master bedroom is over our garage. Even though the garage is insulated, for the past 5 winters of living in this home, The bedroom has easily been 5° colder than the rest of the house. We have a nest thermostat and we have a second thermostat sensor in the bedroom. I would say that we got and installed both of these fans by mid-month Jan and you can see how much the energy use has gone down overall since. We did have a few very cold days this past week so take that into account but the temperature has stayed consistently within a degree or the same as the rest of the house since we started using the fan vents. We tried another brand first that had more technical bells and whistles but I find this one to be quieter and easier to set. I have the fan set 5, and it remains fairly quiet. I set the cold to off and I set the heat to kick on when it tracks below 70 in the vent. We are an all-electric home on a heat pump so I suspect if you had gas heat you would set it on a higher setting but with a heat pump, it's only using the recirculated air anyway so I set it lower than recommended. For our electric bill, the goal is to try to avoid the auxiliary heat kicking on. I am happy we have been able to do that barely successfully. It used to be that every night in the middle of the night when it was at its coldest we would use a ton of power. Just trying to maintain the temperature. It's a fairly large room about 10x 20 and we have two vents that are right near the windows and the edge of the garage, which would probably be the coldest part of the house. These are what we put the fan vents in. The other two vents are tucked away in the ensuite bathroom, and the walkin closet. Even though they keep those places warm, they don't put a lot of heat out into the room. These have been a game changer for us and I haven't done comparisons with our heating bill yet, but I expect it will help based on what our sense monitor is saying. I am just so happy to be able to shut the door up here and not freeze and not worry about using a space heater and to have this room stay the same temperature as the whole house. Definitely worth it!

## Features

- Quiet Register Booster Fan: A quiet fan system designed for improving wall and floor vents airflow from HVAC systems to increase home comfort. Built with a premium anodized aluminum frame and CNC-machined details, offering a sleek, flush, and clean appearance.
- Eliminate Uneven Room Temperatures: Biowind smart register vent equipped with programmable LED controller and high-precision temp sensor to work with HVAC. It can automatically turn on/off vent fan to heat or cool the rooms at the right time.
- New Upgraded Remote Control: Remotely adjust the fan speed(0-10 level）to meet user different needs and make a perfect balance between noise and comfort. No need to get up, More convenient.
- Energy-Saving & Cost-Effective: This vent booster fans are more energy-efficient to traditional AC and cooling devices. They rely on airflow to improve indoor temperature and circulation, maximize the heating or cooling from your HVAC system with minimum energy. Besides, This smart register vent continues running after HVAC system off, pulling every bit of heat or cold air into your home. Help you save more energy & electricity costs.
- Compact & Easy to Install: Biowind smart register booster fan is small in size and easy to move or install,making them convenient to use. Fits ONLY 4" x 12" Register Vent| Rated power: 6W | AC Input: 100 to 240 VAC| Airflow: 120 CFM | Noise: 18 Dba | Includes Wall Adapter, plug and play.
- Affordable: Compared to large-scale air conditioning and cooling devices, booster fans are relatively inexpensive and affordable, making them accessible to ordinary households.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D1G1GD5P |
| Air Flow Capacity | 120 Cubic Feet Per Minute |
| Best Sellers Rank | #6,308 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #11 in Household Ventilation Fans |
| Brand | BIOWIND |
| Color | Black 4" x 12" |
| Control Method | App, Remote |
| Customer Reviews | 4.3 4.3 out of 5 stars (2,737) |
| Date First Available | April 11, 2024 |
| Efficiency | High |
| Electric fan design | Exhaust Fan |
| Finish Type | Black |
| Included Components | Cord |
| Indoor/Outdoor Usage | Indoor |
| Is Cordless? | No |
| Item Weight | 2.12 pounds |
| Item model number | AirBoost T4 |
| Model Name | AirBoost T4 |
| Noise Level | 18 Decibels |
| Number of Blades | 7 |
| Number of Power Levels | 10 |
| Power Source | Corded Electric |
| Product Dimensions | 1.96"D x 5.51"W x 13.77"H |
| Recommended Uses For Product | Indoor |
| Room Type | Bedroom, Dining Room, Home Office, Kids Room, Living Room |
| Size | 4" x 12" |
| Special Feature | Remote Controlled |
| Speed | 120 Cubic Feet Per Minute |
| Style | Modern |
| Wattage | 6 watts |

## Product Details

- **Brand:** BIOWIND
- **Color:** Black 4" x 12"
- **Electric fan design:** Exhaust Fan
- **Mounting Type:** Floor Mount
- **Power Source:** Corded Electric
- **Product Dimensions:** 1.96"D x 5.51"W x 13.77"H
- **Recommended Uses For Product:** Indoor
- **Room Type:** Bedroom, Dining Room, Home Office, Kids Room, Living Room
- **Special Feature:** Remote Controlled
- **Style:** Modern

## Images

![Quiet Register Booster Fan Fits 4" x 12" Register Holes, 10-Speed Smart Heating Cooling AC Vent Fan with Remote Control and Thermostat Control - Black - Image 1](https://m.media-amazon.com/images/I/71jKCLYGoCL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works Great, Easy Installation
*by M***R on August 18, 2025*

I was a bit skeptical of this item at first, had a different product years ago that didn't seem to help. But the second story in our home tends to run 3-5 degrees warmer in the summer than the main floor where the thermostat is located and took the chance that this may help. Installation was quite easy, just make sure you get the right size, loved that they had a variety of size choices unlike many other competitors. I admit, it took me a few minutes to understand how to lock in the settings correctly, but got them eventually. The highest fan speed is a bit noisy, but we are a fan family and it's more just like background white noise. And we'll take the noise because the velocity with which it pulls the air is quite strong, you can feel it from several feet away! We are very happy with the unit, when the AC is running, it cools the room to the exact same temperature as the thermostat is set, even a degree lower sometimes! That being said, you have to understand how it works. You program the cooling temperature lower than the thermostat setting by a few degrees, but not colder than the temperature of the air when the AC is blowing. The fan should be off until the AC starts blowing, and once it senses colder air, the fan turns on. This means that when the AC is actively blowing, it makes a significant difference in the room temperature. However, if there are longer periods when the AC is not blowing, the room temperature will creep back up because the unit is off (as it should be since it would then be pulling in hotter air just sitting in the vents). Just a word of caution so you have realistic expectations. My only minor complaint is that it does seem to take a couple minutes to turn on after the AC starts blowing, and stays on for a couple minutes after the AC clicks off. But it's a minor issue and does not seem to detract from overall performance.

### ⭐⭐⭐⭐⭐ They Work!!
*by M***E on January 26, 2025*

Our master bedroom is over our garage. Even though the garage is insulated, for the past 5 winters of living in this home, The bedroom has easily been 5° colder than the rest of the house. We have a nest thermostat and we have a second thermostat sensor in the bedroom. I would say that we got and installed both of these fans by mid-month Jan and you can see how much the energy use has gone down overall since. We did have a few very cold days this past week so take that into account but the temperature has stayed consistently within a degree or the same as the rest of the house since we started using the fan vents. We tried another brand first that had more technical bells and whistles but I find this one to be quieter and easier to set. I have the fan set 5, and it remains fairly quiet. I set the cold to off and I set the heat to kick on when it tracks below 70 in the vent. We are an all-electric home on a heat pump so I suspect if you had gas heat you would set it on a higher setting but with a heat pump, it's only using the recirculated air anyway so I set it lower than recommended. For our electric bill, the goal is to try to avoid the auxiliary heat kicking on. I am happy we have been able to do that barely successfully. It used to be that every night in the middle of the night when it was at its coldest we would use a ton of power. Just trying to maintain the temperature. It's a fairly large room about 10x 20 and we have two vents that are right near the windows and the edge of the garage, which would probably be the coldest part of the house. These are what we put the fan vents in. The other two vents are tucked away in the ensuite bathroom, and the walkin closet. Even though they keep those places warm, they don't put a lot of heat out into the room. These have been a game changer for us and I haven't done comparisons with our heating bill yet, but I expect it will help based on what our sense monitor is saying. I am just so happy to be able to shut the door up here and not freeze and not worry about using a space heater and to have this room stay the same temperature as the whole house. Definitely worth it!

### ⭐⭐⭐⭐⭐ Great, highly recommend
*by D***S on December 20, 2025*

It works great and helped boost airflow in a room that gets the sun at its hottest point. It definitely kept the room cooler overall.

## Frequently Bought Together

- BIOWIND Quiet Register Booster Fan, Smart Register Vent Fits 4" x 12" Register Holes with Remote Control and Thermostat Control, Heating Cooling AC Vent Fan - Black
- Decor Grates AJH412-BLK Oriental Floor Register, 4x12 Inches, Textured Black

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-03-01*