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
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Availability:
Only 3 left in stock, order soon!
Arrives
Sunday, Jul 19
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Color: White
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".
Brand: BIOWIND
Color: White
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: 11
Noise Level: 16 Decibels
Wattage: 6 watts
Number of Blades: 7
Air Flow Capacity: 140 Cubic Feet Per Minute
Speed: 10 RPM
Voltage: 100 Volts
Switch Type: Remote Control
Indoor Outdoor Usage: Indoor
Control Method: Remote
Is Product Cordless: No
Number of Power Levels: 10
Main Power Connector Type: Standard AC power connector
Smart Home Compatibility: Smart Home Compatible
Installation Type: Floor Mount, Wall Mount
Connector Type: Standard AC power connector
Is Electric: Yes
Specification Met: CE
Color: White
Electric Fan Design: Exhaust Fan
Style: Modern
Finish Type: "Glossy White" or "Matte White"
Form Factor: Rectangular
Theme: Modern
Collection Name: AirBoost T4
Item Dimensions D x W x H: 1.96"D x 11.54"W x 5.51"H
Item Weight: 2.05 Pounds
Size: 4" x 10"
Brand Name: BIOWIND
Included Components: Cord, Remote
Model Name: AirBoost T4
Model Number: AirBoost T4
Manufacturer: BIOWIND
Unit Count: 1.0 Count
Material: Aluminum
Blade Material: Plastic
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Jul 19
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
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.
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Reviewed in the United States on June 22, 2025 by D. Harmon
Color: Black
Size: 4" x 10"
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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Reviewed in the United States on January 26, 2025 Reviewed in the United States on January 26, 2025 by Mike
Color: Black
Size: 4" x 10"
I thought this was going to be cheap and not really improve airflow and honestly thought I would just end up sending it back. This thing has been perfect in pulling cold air into my upstairs. My basement and first floor stay cold but it's hot on the 2nd floor even at night. This thing has dropped the temperature 7 degrees. It's even better if you use another fan to it close by as I sleep with one anyways. Keeps it Cold at night and help temperatures during the day too. The different settings are nice but I always just keep it on high. The remote is really nice. It's built well and not cheap and feels like it's going to break. It also looks very clean and better then metal vent. I like the black a lot. It's powerful but works best on high. The size is great and fits perfect for all vents in my house. Their is no coil whine or annoying whine noise. I am going to buy 3 more for all the rooms on my 2nd floor. Would definitely recommend to anyone who needs help pulling ac/heat into certain rooms in their house that air struggles to reach.
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Reviewed in the United States on August 9, 2025 by Aaron Matheny
Color: Bronze
Size: 4" x 10"
Works well and does push out more heat and air. Room is cooler and warmer based on what is running. It is pretty quiet, but you can tell it running.
Reviewed in the United States on March 21, 2026 Reviewed in the United States on March 21, 2026 by Tina Willis
Color: Bronze
Size: 4" x 10"
We have a three-story townhouse and we were having difficulty regulating the temperature on the top floor. It would be unbearably hot and muggy until we got this fan. It installed in just a few minutes and its settings are very easy to operate. We were so pleased that we bought more for other rooms. It fits perfectly in the air duct. I highly recommend this purchase. This product is very effective and works as advertised.
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Reviewed in the United States on May 31, 2026 by Amazon Customer
Color: White
Size: 4" x 10"
I have a single vent in my bedroom and it easily would get into the upper 80s in my room in the summertime when the rest of the house was set to 75. Now it’s several degrees cooler because air can actually move into my room (which is furthest from the fan/AC). It’s quiet and there are several speed settings on it.
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Reviewed in the United States on May 28, 2026 by Ericka
Color: White 6" x 12"
Size: 6" x 12"
This beats paying $10k for a ductless mini-split (for now). Our attic bedroom gets stifling in the summer because the floor vent is tucked away in a corner and our windows need to be replaced. We have had some 80F days recently, and I can say that this thing really does keep the room livable. Not cold, not super cool, but definitely below 74F when the regular thermostat is set to 70. I am impressed.
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Reviewed in the United States on May 29, 2026 by Anne
Color: Bronze
Size: 4" x 10"
Should’ve bought these years ago they fit perfectly in the registers and have various sizes. Just be sure you’ve got an electrical outlet nearby. They seem to be little computer fans and they have improved the air flow immensely in the ones that I’ve used had bedrooms upstairs that were either too cold or too hot and these are perfect. You can adjust the temperature for them to stay on and to come on for both heat and air-conditioning. Remember, they have an electric cord and you will need an outlet close by or they use an extension cord they work great.
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Reviewed in the United States on May 23, 2026 by Bbeer