---
product_id: 521905300
title: "Register Booster Fan for 4x10 inch Register Holes - White"
brand: "biowind"
price: "A$124"
currency: AUD
in_stock: null
reviews_count: 9
category: "Biowind"
url: https://www.desertcart.com.au/products/521905300-register-booster-fan-for-4x10-inch-register-holes-white
store_origin: AU
region: Australia
---

# 120 CFM airflow 10-speed remote control 18 dB whisper-quiet Register Booster Fan for 4x10 inch Register Holes - White

**Brand:** biowind
**Price:** A$124
**Availability:** ❌ Out of Stock

## Summary

> 💨 Elevate your airflow game — comfort meets smart efficiency!

## Quick Answers

- **What is this?** Register Booster Fan for 4x10 inch Register Holes - White by biowind
- **How much does it cost?** A$124 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/521905300-register-booster-fan-for-4x10-inch-register-holes-white)

## 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 control via remote lets you tailor comfort without leaving your seat.
- • **Sleek & Seamless Fit:** Premium anodized aluminum frame fits flush in 4x10 inch vents for a modern, minimalist look.
- • **Smart Climate Control:** Automatically balances room temperature with precision temp sensor & programmable LED thermostat.
- • **Energy-Saving Powerhouse:** Maximizes HVAC efficiency with just 6W power, cutting energy bills while boosting comfort.
- • **Whisper-Quiet Efficiency:** Operates at a barely-there 18 dB, perfect for focused work or restful sleep.

## Overview

The BIOWIND Register Booster Fan is a compact, energy-efficient ventilation solution designed for 4x10 inch HVAC vents. Featuring a powerful 120 CFM airflow, ultra-quiet 18 dB operation, and a 10-speed remote-controlled fan, it smartly regulates room temperature with a built-in thermostat sensor. Its premium anodized aluminum frame ensures a sleek, flush installation that enhances any modern home environment while reducing energy costs.

## Description

Buy BIOWIND Quiet Register Booster Fan Fits 4" x 10" Register Holes, 10-Speed Smart Heating Cooling AC Vent Fan with Remote Control and Thermostat Control - White: Ventilation Fans - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

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 10" 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 | B0BS6H6XV2 |
| Air Flow Capacity | 120 Cubic Feet Per Minute |
| Best Sellers Rank | #10,655 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #15 in Household Ventilation Fans |
| Brand | BIOWIND |
| Color | White |
| Control Method | Remote |
| Customer Reviews | 4.3 4.3 out of 5 stars (2,783) |
| Date First Available | January 12, 2023 |
| Efficiency | energy-efficient |
| Electric fan design | Exhaust Fan |
| Finish Type | "Glossy White" or "Matte White" |
| Form Factor | Rectangular |
| Included Components | Cord, Remote |
| Indoor/Outdoor Usage | Indoor |
| Installation Type | Floor Mount, Wall Mount |
| Is Cordless? | No |
| Item Weight | 2.05 pounds |
| Item model number | AirBoost T4 |
| Main Power Connector Type | Standard AC power connector |
| Manufacturer | BIOWIND |
| 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 11.54"W x 5.51"H |
| Recommended Uses For Product | Indoor |
| Room Type | Bedroom, Dining Room, Home Office, Kids Room, Living Room |
| Size | 4" x 10" |
| Special Feature | Remote Controlled |
| Specification Met | CE |
| Speed | 10 RPM |
| Style | Modern |
| Voltage | 100 Volts |
| Wattage | 6 watts |

## Product Details

- **Brand:** BIOWIND
- **Color:** White
- **Electric fan design:** Exhaust Fan
- **Mounting Type:** Floor Mount, Wall Mount
- **Power Source:** Corded Electric
- **Product Dimensions:** 1.96"D x 11.54"W x 5.51"H
- **Recommended Uses For Product:** Indoor
- **Room Type:** Bedroom, Dining Room, Home Office, Kids Room, Living Room
- **Special Feature:** Remote Controlled
- **Style:** Modern

## Images

![Register Booster Fan for 4x10 inch Register Holes - White - Image 1](https://m.media-amazon.com/images/I/61Ft+eh2pJL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: could you put in on a window ac?**
A: No, it’s made for an ac register

**Q: can i install it on window?**
A: I wouldn't use window to hold it in place but I don't see why you couldn't use it in window.

**Q: The plug felt pretty hot after this was running for a while.  Is that normal?**
A: Mine didn't feel hot so probably you should contact customer service for help

**Q: Will the duct fan turn on or off automatically?**
A: The duct booster fan will automatically turn on or off based on the temperature of the air in the duct.　It has a heating setting and a cooling setting.　when the air in the duct rises to the heating set-point or drops below the cooling set-point, the device turns on and runs.

## 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 Device
*by D***N on June 22, 2025*

No more expensive portable room air conditioners that last less than 5 years!! These work to cool living areas: kitchen in the mornings, bedroom at night. Can't say they are 'quiet' when fan is set to high (8-10), but it's not invasive, more like airplane engine noise at cruise altitude (white noise actually puts most people to sleep, the reason so many people take a flying nap). Settings are simple to make and so far, no problem with digital panel working as expected. Important Note: these plug into electrical outlet, so carefully consider whether they can plug in near your target register vents. Elec cord is reasonably long. I've only used these for one month (summer) with central ac cooling, so can't speak to longevity, but with my bdrm door closed for an hour before bedtime, they bring temperature down abt 10 degrees (with ac running, then I turn central hvac off at bedtime, bdrm stays cool all night). Colder rooms help with getting to sleep. One more thing. These vent units measure the air temp blowing from the vent, not the room temperature. You select the vent temp -- for summer mine is set to come on when vented air is below 70; next winter over 80. Note: an issue arises when trying to set both at same time (not a flaw, issue is covered in instructions), simple to set it once per season.

## Frequently Bought Together

- BIOWIND Quiet Register Booster Fan Fits 4" x 10" Register Holes, 10-Speed Smart Heating Cooling AC Vent Fan with Remote Control and Thermostat Control - White
- Home Intuition Heat and Air Vent Deflector 8.5" to 15" Magnetic Non Melting Adjustable for Vents, Sidewall, and Ceiling Registers, 2 Pack

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-14*