---
product_id: 600881389
title: "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 - White"
brand: "biowind"
price: "€ 94.17"
currency: EUR
in_stock: true
reviews_count: 6
url: https://www.desertcart.hr/products/600881389-biowind-quiet-register-booster-fan-fits-4-x-12-register
store_origin: HR
region: Croatia
---

# 6W energy-efficient 18 dB noise level 120 CFM airflow 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 - White

**Brand:** biowind
**Price:** € 94.17
**Availability:** ✅ In Stock

## Summary

> Breathe Easy, Live Better! 🌟

## Quick Answers

- **What is this?** 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 - White by biowind
- **How much does it cost?** € 94.17 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/600881389-biowind-quiet-register-booster-fan-fits-4-x-12-register)

## 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

- • **Affordable Luxury:** Enjoy premium comfort without breaking the bank.
- • **Compact & Versatile:** Fits perfectly in 4" x 12" vents, easy to install.
- • **Energy-Saving Marvel:** Maximize HVAC efficiency while cutting costs.
- • **Transform Your Comfort:** Say goodbye to uneven room temperatures!
- • **Smart Control at Your Fingertips:** Adjust fan speed remotely for ultimate convenience.

## Overview

The Quiet Register Booster Fan is a compact, energy-efficient solution designed to enhance airflow from your HVAC system. With a noise level of just 18 dB and a powerful airflow capacity of 120 CFM, this fan ensures optimal comfort in your home. It features a programmable LED controller, remote control for easy adjustments, and a thermostat for automatic operation, making it a smart addition to any household looking to improve indoor climate without high costs.

## Description

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

## 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 |
|---------------|-------|
| Compatible Devices | Remote |
| Noise Level | 18 dB |
| Air Flow Capacity | 120 Cubic Feet Per Minute |
| Wattage | 6 watts |
| Cooling Method | Air |
| Voltage | 100 Volts (AC) |
| Material Type | Aluminum |
| Item Dimensions L x W x H | 13.77"L x 5.51"W x 1.96"H |

## Product Details

- **Brand:** BIOWIND
- **Color:** White 4" x 12"
- **Power Source:** Corded Electric
- **Style:** Modern
- **Product Dimensions:** 6.65"D x 16.14"W x 2.36"H
- **Room Type:** Kids Room, Bedroom, Living Room, Home Office, Dining Room
- **Special Feature:** Remote Controlled
- **Recommended Uses For Product:** Indoor
- **Noise Level:** 18 dB
- **Wattage:** 6 watts

## Images

![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 - White - Image 1](https://m.media-amazon.com/images/I/61vrvFeYDDL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ Amazing customer service and great product that gets a room cooler with no bulky equipment
*by L***S on July 2, 2025*

My son's room is the hottest on the second floor of our house. Add his XBox running all the time and it's in the 80's consistently. This fan, which takes minute to swap out the original vent for, has made a huge difference getting the most of the cool air out of the duct and into his room. It has a remote so he can adjust the fan and it's a set-it-and-forget type thing. But best of all is the customer service with this product. When I bought it a year ago I got the wrong size. I was sent, free of charge, the right size even though it was my fault. This year, once the temps started to rise the unit fans weren't spinning. I emailed the same address I did before was sent a replacement immediately free of charge. Popped the new unit in within one minute and we were up and running again. I couldn't ask for a better customer experience and the fan makes the room cooler. Five stars.

### ⭐⭐⭐⭐⭐ It works.  Well.  Wish I bought one years ago
*by J***N on July 5, 2025*

Didn't think it would work so well.It has kept the temp in our bedroom down about 3 degrees which was impossible before.Used to get to 78 no matter what I did. Now it sits at 75. Which is cool enough.Wish I bought one years ago. Always had other ideas that sort of worked. But this is it.It seems well built. User friendly. I just let it run all day. At least for now. May test the other features soon.It fit 4x10 effortlessly. 4x10 is the hole. Not the top of the register.It's very quiet. We use a fan anyways. And this noise disappears.Without the fan it's quiet. Could take the place of fan noise too. If on high setting.

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.hr/products/600881389-biowind-quiet-register-booster-fan-fits-4-x-12-register](https://www.desertcart.hr/products/600881389-biowind-quiet-register-booster-fan-fits-4-x-12-register)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-02-25*