Search  for anything...
BIOWIND

BIOWIND Quiet Smart Register Booster Fan Fits 4" x 10" Vent Opening, Bronze

  • Based on 2,802 reviews
Condition: New
Checking for the best price...
$49.99 Why this price?

Buy Now, Pay Later

As low as $8.33 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: Only 3 left in stock, order soon!
Fulfilled by Amazon
Arrives Monday, Sep 21
Order within 18 hours and 28 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Color: Bronze


Size: 4" x 10"


Features

  • 2026 Fan Stability Upgrade: Built with dynamic fan balancing, motor start-up verification, and noise & vibration screening to support smoother airflow, quieter operation, and long-term reliability.
  • Quiet Register Booster Fan: A quiet fan system designed to improve airflow from wall and floor vents in HVAC systems, helping increase home comfort. Built with a premium anodized aluminum frame and CNC-machined details, it offers a sleek, flush, and modern appearance that blends seamlessly with your home decor.
  • Eliminate Uneven Room Temperatures: The Biowind smart register vent features a programmable LED controller and a high-precision temperature sensor that works with your HVAC system. It automatically turns the vent fan on or off to deliver warm or cool air to rooms at the right time, helping maintain balanced temperatures throughout your home.
  • New Upgraded Remote Control: Easily adjust the fan speed (010 levels) with the remote to meet diverse user needs and achieve the perfect balance between airflow performance and quiet operation. Control your comfort without getting up, simple and convenient.
  • Energy-Saving & Cost-Effective: This vent booster fan is more energy-efficient than traditional air-conditioning or cooling devices. By enhancing airflow and circulation, maximize the heating or cooling from your HVAC system with minimum energy. Even after your HVAC system shuts off, the fan continues running briefly to pull remaining warm or cool air into the roomhelping you save energy and reduce electricity costs.
  • Compact & Easy to Install: The Biowind smart register booster fan features a compact design that is easy to install and move when needed. Fits ONLY 4" x 10" duct opening (cutout) | Rated Power: 6W | AC Input: 100 to 240V | Airflow: 140 CFM | Noise: 16 dBA. Includes wall adapter, plug and play for quick setup.
  • Affordable Comfort Upgrade: Compared with large air conditioning or cooling systems, booster fans are a simple and affordable solution for improving airflow and indoor comfort, making them accessible for most households.
  • Please Measure Before Ordering: Please measure the duct opening (cutout) before ordering, not the old vent cover. The listed size refers to the actual duct opening in the wall or floor. The neck of the register booster fan fits inside the opening, while the face frame sits on top of the wall or floor surface. Measuring correctly helps ensure the best fit and helps avoid unnecessary returns. Listed Size: 4" 10", Neck Size: 9.72" 3.93", Face Size: 11.54" 5.51", Neck Insertion Depth: 1.96".

Description

BETTER AIR, BETTER LIFE Biowind is a household appliance brand that prioritizes product development and technology research. We commit to providing cost-effective solutions for you and your family. We aim to improve living environment air quality for our customers to enjoy a better and comfort life. Your home's heating and cooling system provides a comfortable environment, but sometimes certain rooms may not receive adequate airflow, leading to discomfort for your family and higher energy expenses. To address this issue, you can boost the airflow from weaker registers to create more balanced temperature distribution and improve overall comfort while also reducing energy costs. A practical protection feature to prevent children or pets from casually touching the button to change settings. When the screen display "LC", it means it is locked. The screen is automatically turned off for power saving if you do not operate the device for 6 minutes. You can also turn off the screen manually. Don't worry about the lights being too bright to disturb you when are sleepping. Wireless remote control design, easy for you to adjust the wind speed(0 - 10) in any operation mode at any time, whether you are sitting or lying down. It can help you to minimize noise and power consumption. It's very convenient and necessary for those who install the fan in high places.

Brand: BIOWIND


Color: Bronze


Electric fan design: Exhaust Fan


Power Source: Corded Electric


Style: Modern


Product Dimensions: 1.96"D x 11.54"W x 5.51"H


Room Type: Bedroom, Dining Room, Home Office, Kids Room, Living Room


Special Feature: Remote Controlled


Recommended Uses For Product: Indoor


Mounting Type: Floor Mount, Wall Mount


Power Source: Corded Electric


Room Type: Bedroom, Dining Room, Home Office, Kids Room, Living Room


Special Features: Remote Controlled


Recommended Uses For Product: Indoor


Mounting Type: Floor Mount, Wall Mount


Controller Type: Button Control


Number of Speeds: 10


Noise Level: 16 db


Wattage: 6 watts


Number of Blades: 7


Air Flow Capacity: 140 cfm


Speed: 10


Voltage: 100 volts_of_alternating_current


Switch Type: Push Button


Indoor Outdoor Usage: Indoor


Control Method: Remote


Number of Power Levels: 11


Main Power Connector Type: Standard AC Plug


Installation Type: Wall/Floor-Mounted


Connector Type: Standard AC Plug


Material: Aluminum


Blade Material: Plastic


Specification Met: CE


Color: Bronze


Electric Fan Design: Exhaust Fan


Style: Modern


Finish Type: Bronze


Form Factor: Compact, Wall/Floor-Mounted Register Fan with Bronze Finish


Collection Name: AirBoost T4


Item Dimensions D x W x H: 1.96"D x 11.54"W x 5.51"H


Blade Length: 10 inches


Item Weight: 2 pounds


Cable Length: 12 feet


Size: 4" x 10"


Brand Name: BIOWIND


Included Components: Cord, Remote


Model Name: AirBoost T4


Model Number: HZD-92F-BZ


Number of Packs: 1


Unit Count: 1 Count


Item Type Name: Booster Fan


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Sep 21

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Works Great, Easy Installation
Color: White 6" x 12" Size: 6" x 12"
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. ... show more
Reviewed in the United States on August 18, 2025 by Mark R
    • They Work!!
Color: Black Size: 4" x 10"
Review Image by Mike Mike
Review Image by Mike Mike
Review Image by Mike Mike
Review Image by Mike Mike
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! ... show more
Reviewed in the United States on January 26, 2025 by Mike Mike
    • Great Device
Color: Bronze 4" x 12" Size: 4" x 12"
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. ... show more
Reviewed in the United States on June 22, 2025 by D. Harmon
    • It Does The Job!
Color: White Size: 4" x 10"
The helped greatly in solving my cooling problem. A little tricky to set up, but once you get it where it works for you, you can forget about it. It is fairly quiet except when it on the highest speed (10),then it is noticeable.
Reviewed in the United States on August 26, 2025 by DJ Bryce

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...