---
product_id: 539111467
title: "Register Booster Fan for 4x10 inch Register Holes - Black"
brand: "biowind"
price: "€ 104.23"
currency: EUR
in_stock: null
reviews_count: 11
category: "Biowind"
url: https://www.desertcart.gr/products/539111467-register-booster-fan-for-4x10-inch-register-holes-black
store_origin: GR
region: Greece
---

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

**Brand:** biowind
**Price:** € 104.23
**Availability:** ❌ Out of Stock

## Summary

> 💨 Elevate your air game—cool smarter, not louder!

## Quick Answers

- **What is this?** Register Booster Fan for 4x10 inch Register Holes - Black by biowind
- **How much does it cost?** € 104.23 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/539111467-register-booster-fan-for-4x10-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

- • **Customizable Airflow:** 10-speed settings via remote let you tailor ventilation to your exact comfort level.
- • **Smart Climate Control:** Automatically adjusts fan based on precise temperature sensing for perfect room comfort.
- • **Whisper-Quiet Efficiency:** Operates at just 18 dB, blending powerful airflow with near-silent performance.
- • **Energy-Saving HVAC Booster:** Maximizes your HVAC’s heating & cooling efficiency while cutting energy costs.
- • **Sleek & Simple Installation:** Compact design fits standard 4"x10" vents and installs in minutes—no hassle, no fuss.

## Overview

The BIOWIND Quiet Register Booster Fan is a compact, energy-efficient ventilation solution designed to fit 4"x10" HVAC vents. Featuring a powerful 120 CFM airflow, whisper-quiet 18 dB operation, and a 10-speed remote-controlled fan, it smartly balances comfort and energy savings by automatically adjusting to room temperature. Easy to install and perfect for eliminating uneven room temperatures, it’s the savvy millennial’s secret weapon for a perfectly climate-controlled home.

## 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 - Black: 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: Keeps bedrooms cooler and improves AC circulation - Exactly what we needed for the upstairs bedroom! They pull more of the AC cool air up to the room and keeps the rooms cooler. We can raise the temp in our thermostat as these little fans are keeping the rooms at our preferred temp. They are easy to install and setup as long as you follow the directions. We’ve been running one in each bedroom for about a month now and at full fan speed (10) with no issues. The power cord is long enough to reach an outlet. Highly recommend as these are a great value and work as described. The remote works fine, but I just don’t use it as it’s easy enough to adjust settings on the register.

## 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 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 | B0C9LCHDJC |
| Air Flow Capacity | 120 Cubic Feet Per Minute |
| Best Sellers Rank | #10,595 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #18 in Household Ventilation Fans |
| Blade Length | 10 Inches |
| Brand | BIOWIND |
| Cable Length | 12 Feet |
| Color | Black |
| Control Method | App, Remote |
| Customer Reviews | 4.3 4.3 out of 5 stars (2,725) |
| Date First Available | July 3, 2023 |
| Efficiency | 20 cubic feet per minute per watt |
| Electric fan design | Exhaust Fan |
| Finish Type | Powder Coated |
| Form Factor | Wall-Mount or Floor-Mount |
| 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 | HZD-92F-BK |
| Main Power Connector Type | NEMA 1-15P |
| 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 |
| Style | Modern |
| Voltage | 100 Volts (AC) |
| Wattage | 6 watts |

## Product Details

- **Brand:** BIOWIND
- **Color:** Black
- **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 - Black - Image 1](https://m.media-amazon.com/images/I/618cGz3IN+L.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.

### ⭐⭐⭐⭐⭐ Keeps bedrooms cooler and improves AC circulation
*by D***5 on June 22, 2025*

Exactly what we needed for the upstairs bedroom! They pull more of the AC cool air up to the room and keeps the rooms cooler. We can raise the temp in our thermostat as these little fans are keeping the rooms at our preferred temp. They are easy to install and setup as long as you follow the directions. We’ve been running one in each bedroom for about a month now and at full fan speed (10) with no issues. The power cord is long enough to reach an outlet. Highly recommend as these are a great value and work as described. The remote works fine, but I just don’t use it as it’s easy enough to adjust settings on the register.

### ⭐⭐⭐⭐⭐ 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!

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-01-27*