---
product_id: 629887447
title: "Register Booster Fan for 4x12 inch Register Holes - Black"
brand: "biowind"
price: "$201"
currency: NZD
in_stock: true
reviews_count: 5
url: https://www.desertcart.nz/products/629887447-register-booster-fan-for-4x12-inch-register-holes-black
store_origin: NZ
region: New Zealand
---

# 6W energy-efficient 18 dB noise level 120 CFM airflow Register Booster Fan for 4x12 inch Register Holes - Black

**Brand:** biowind
**Price:** $201
**Availability:** ✅ In Stock

## Summary

> Breathe Easy, Live Better! 🌟

## Quick Answers

- **What is this?** Register Booster Fan for 4x12 inch Register Holes - Black by biowind
- **How much does it cost?** $201 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-register-booster-fan-for-4x12-inch-register-holes-black)

## 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

- • **Transform Your Comfort:** Say goodbye to uneven room temperatures with smart airflow control.
- • **Whisper-Quiet Operation:** Enjoy a peaceful environment with a noise level of just 18 dB.
- • **Compact & Stylish Design:** Fits seamlessly into your home decor while enhancing comfort.
- • **Energy-Saving Innovation:** Maximize HVAC efficiency while minimizing energy costs.
- • **Remote Control Convenience:** Adjust fan speed effortlessly from anywhere in the room.

## Overview

The Quiet Register Booster Fan is a compact and efficient solution designed to enhance airflow from your HVAC system. With a whisper-quiet operation at just 18 dB, this fan features a programmable LED controller and a high-precision temperature sensor for optimal comfort. Its 10-speed remote control allows for easy adjustments, ensuring you can maintain the perfect balance of temperature and noise. Energy-efficient and affordable, this fan is perfect for any room in your home, making it a smart choice for modern living.

## Description

Full description not available

## Features

- Quiet Register Booster Fan: A quiet fan system designed for improving wall and floor vents airflow from HVAC systems to increase home comfort.
- 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 |
|---------------|-------|
| Item Dimensions D x W x H | 1.96"D x 5.51"W x 13.77"H |
| Indoor Outdoor Usage | Indoor |
| Control Method | App, Remote |
| Efficiency | High |
| Is Product Cordless | No |
| Is Electric | Yes |
| Number of Power Levels | 10 |
| Number of Speeds | 11 |
| Noise Level | 18 dB |
| Number of Blades | 7 |
| Air Flow Capacity | 120 Cubic Feet Per Minute |
| Speed | 120 Cubic Feet Per Minute |
| Power Source | Corded Electric |
| Room Type | Kids Room, Living Room, Bedroom, Home Office, Dining Room |
| Additional Features | Remote Controlled |
| Recommended Uses For Product | Indoor |
| Mounting Type | Floor Mount |
| Controller Type | Remote Control |
| Theme | Modern |
| Electric Fan Design | Exhaust Fan |
| Style Name | Modern |
| Color | Black 4" x 12" |
| Blade Material | Plastic |
| Material Type | Aluminum |

## Product Details

- **Brand:** BIOWIND
- **Color:** Black 4" x 12"
- **Electric fan design:** Exhaust Fan
- **Power Source:** Corded Electric
- **Style:** Modern
- **Product Dimensions:** 1.96"D x 5.51"W x 13.77"H
- **Room Type:** Bedroom, Dining Room, Home Office, Kids Room, Living Room
- **Special Feature:** Remote Controlled
- **Recommended Uses For Product:** Indoor
- **Noise Level:** 18 Decibels

## Images

![Register Booster Fan for 4x12 inch Register Holes - Black - Image 1](https://m.media-amazon.com/images/I/71jKCLYGoCL.jpg)
![Register Booster Fan for 4x12 inch Register Holes - Black - Image 2](https://m.media-amazon.com/images/I/713HHLABg-L.jpg)
![Register Booster Fan for 4x12 inch Register Holes - Black - Image 3](https://m.media-amazon.com/images/I/61vLzuDHfxL.jpg)
![Register Booster Fan for 4x12 inch Register Holes - Black - Image 4](https://m.media-amazon.com/images/I/61l69XfvEZL.jpg)
![Register Booster Fan for 4x12 inch Register Holes - Black - Image 5](https://m.media-amazon.com/images/I/61DNMtTcn8L.jpg)

## Available Options

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

## 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.

### ⭐⭐⭐⭐⭐ Best booster fan in the market and excellent Customer support. Highly recommended !!!
*by I***R on August 20, 2025*

Best booster fan in the market. Nice product and excellent customer support. I had no issue with the unit. They had promotional discounts for the 2nd & succeeding purchases. I emailed the customer support and responded to me within a few minutes, and they gladly provided me with my discount codes.The unit is very quiet and works well as it was described. Easy to set up. Works well in our rooms with a low airflow. I bought 4 units. This booster fan and the seller are highly recommended, 5 stars all the way.

### ⭐⭐⭐⭐⭐ This works, and I need to order some more for other rooms
*by J***W on May 15, 2025*

I have an upstairs that runs too warm all summer. It's big room with one vent fed by at least a 15 foot run of 12" duct. I had been planning to sever the duct and install an inline duct fan up in the attic and either use an expensive pressure switch or tap into the thermostat wire with a relay, but this vent register booster is a much easier to install and less expensive solution - and it's working pretty well!Plugging it in is the only tricky part, but I was able to plug it in up in the attic so no cord is visible. I took my old vent register off and I probed around the edges with one of those wiring fishing rods until I found a gap where the rod could push up into the attic. Then I climbed up in the attic, plugged it into an outlet up there and then taped the end of the cord to the rod so I could pull it back down into the room. The AC register booster has a short 6 inch lead attached to it, and the rest of the wire connects to that. It's obviously heavier than a plain vent register, so it was bit difficult to install because I had to use both hands to hold the register up there and connect the wire and then reach for the screw and screwdriver to fasten it in place without letting go of anything.The thermostat measures the air in the duct so that you can set it a temperature below the normal room temperature, but above the temperature you're reading in the vent when the AC is on and it will turn the fans on only once the cold air starts coming through. Mine started off reading 68ºF in the duct, but after a while I checked it again and the reading was 66º, so I figure it's pulling the cool air through the duct faster and not allowing it to heat up in that long duct in the attic. I still need to replace my AC system, but I can tell that this room is noticeably more comfortable after installing this inexpensive solution first.

## 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

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.nz/products/629887447-register-booster-fan-for-4x12-inch-register-holes-black](https://www.desertcart.nz/products/629887447-register-booster-fan-for-4x12-inch-register-holes-black)

---

*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-01-23*