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pennysave 63.6K Views
Nov 29, 2025 10:14 AM

Biowind 4"x10" Smart AC Vent Cooling Booster Fan w/ Thermostat & Remote Control

$25

$38

34% off
+ Free Shippingat Amazon
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Deal Details
Biowind via Amazon has Biowind 4"x10" Smart AC Vent Cooling Booster Fan w/ Thermostat Control & Remote Control (White) on sale for $25.24. Shipping is free.

Thanks to community member pennysave for finding this deal

About the Product
  • Quiet Register Booster Fan (Low as 18db)
  • Improve Wall/Floor Vents w/ Airflow
  • Energy Saving/Cost Effective AC Cooling
  • Remote Control w/ 0-10 Level Fan Speed
  • High Precision Temperature Sensor
  • Power-Off Memory
  • Turns On/Off w/ HVAC System via Proper Programming

Editor's Notes

Written by citan359 | Staff
  • About this Deal:
    • Limited time deal, while supplies last.
  • About this Store:
  • Additional Notes:
    • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

Original Post

Written by pennysave
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Biowind via Amazon has Biowind 4"x10" Smart AC Vent Cooling Booster Fan w/ Thermostat Control & Remote Control (White) on sale for $25.24. Shipping is free.

Thanks to community member pennysave for finding this deal

About the Product
  • Quiet Register Booster Fan (Low as 18db)
  • Improve Wall/Floor Vents w/ Airflow
  • Energy Saving/Cost Effective AC Cooling
  • Remote Control w/ 0-10 Level Fan Speed
  • High Precision Temperature Sensor
  • Power-Off Memory
  • Turns On/Off w/ HVAC System via Proper Programming

Editor's Notes

Written by citan359 | Staff
  • About this Deal:
    • Limited time deal, while supplies last.
  • About this Store:
  • Additional Notes:
    • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

Original Post

Written by pennysave

Community Voting

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Top Comments

ji_mestone
516Comments
71Reputation
This is a good deal. I bought a few of these for our living room and kitchen last spring at $38 a piece (different generic brand, but same thing). We have large south facing windows and during the summer our unit just can't keep up (despite multiple HVAC tech visits saying there was nothing wrong). The airflow was always too weak and on 100+ temp days, the coolest it would get was 75/76, even though it was set at 72. These worked perfectly and kept our rooms at temp.
Go to Comment
Cjrmets1985
422Comments
66Reputation
Isn't Biowind just another name for a fart?
Go to Comment
asuka
3KComments
412Reputation
All farts are biowinds. Not all biowinds are farts.

Good option if you have a room that doesn't get enough airflow. Wish I had this as a kid.
Go to Comment

Community Reviews

This register booster fan is aimed at rooms that sit far from the furnace or AC and need help pulling more conditioned air through an existing vent. It is described as useful for long or undersized duct runs, end rooms, basements, attic spaces, and bedrooms over garages, with built in temperature sensing that can keep it running after the HVAC cycles off. The main caveats are noise on higher settings, visible power cords, and the fact that it cannot fix bad ductwork or create airflow that is not already there. A practical niche fix when the room is the weak link.

Common Questions (5)

  • Yes, it needs power from an outlet, so cord routing is part of the install. Ceiling installs can leave the wire visible unless you hide it in the wall, under baseboards, or hardwire a nearby outlet.

    coltrane69carlson03airj1012m2go

  • Yes, it can help pull more conditioned air to a room that is far from the furnace or has weak duct airflow, especially for cooling. It does not create new airflow, so it works best where there is already some air to redistribute rather than fixing a bad duct run.

    ji_mestoneWooHoo2Youredmark12345sc2

  • On low settings it can be nearly silent or just a soft white-noise sound, but higher settings are noticeably louder and can be disturbing at night. Placement farther from the bed or using lower speeds helps if noise matters.

    JohnybrkPoppmaticISurfTooMuchk1981r

  • Yes. It has a built-in temperature sensor and can keep running after the HVAC shuts off, then turn off when the duct air no longer meets the set temperature. Some users also tie it to a smart plug so it powers on only when heat or AC is running.

    JohnybrkJohnybrkcarlson03c3688t

  • No. It can help a weak end register or a room that is slightly under-supplied, but it will not solve leaky ducts, undersized runs, or other underlying HVAC balance problems.

    bptexansnivesDerpVaderMisio

AI-generated summary based on comments from the community. Updated ago

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76 Comments

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Nov 29, 2025 4:08 PM
124 Comments
Joined Mar 2011

This comment has been rated as unhelpful by Slickdeals users.

Nov 29, 2025 4:14 PM
4K Comments
Joined Nov 2008
CollegeRamenEatNov 29, 2025 4:14 PM
4K Comments
bummer, i have a weird 3"x12"
Nov 29, 2025 4:14 PM
4K Comments
Joined Nov 2008
CollegeRamenEatNov 29, 2025 4:14 PM
4K Comments
Quote from n80r View quoted comment :
So it just sits there silently stealing power from you during the months you don't need you HVAC?
oh no! my pennies!
6
2
Nov 29, 2025 4:19 PM
1.3K Comments
Joined Nov 2007
gerfNov 29, 2025 4:19 PM
1.3K Comments
Quote from fearziz View quoted comment :
ghetto setup and not feasible for ceiling vents, which is 99% of homes
Maybe ceiling vents are more common in your ghetto, but these are more common where I live.
1
2
Nov 29, 2025 4:20 PM
717 Comments
Joined Sep 2005
damageNov 29, 2025 4:20 PM
717 Comments
Quote from n80r View quoted comment :
So it just sits there silently stealing power from you during the months you don't need you HVAC?
lol don't forget to unplug your thermostat when you don't need hvac
Nov 29, 2025 4:26 PM
174 Comments
Joined Feb 2016
runningoutNov 29, 2025 4:26 PM
174 Comments
Quote from fearziz View quoted comment :
ghetto setup and not feasible for ceiling vents, which is 99% of homes
In cold climates almost all vents are in the floor or low on the wall.
Nov 29, 2025 4:29 PM
1.7K Comments
Joined Feb 2007
coltrane69Nov 29, 2025 4:29 PM
1.7K Comments
Quote from fearziz View quoted comment :
ghetto setup and not feasible for ceiling vents, which is 99% of homes
99.9% of the 6 homes I've ever owned, have never had ceiling vents.
So shockingly enough, I think people might actually have different HVAC configurations in different parts of the country or world.
1

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Nov 29, 2025 4:29 PM
2.2K Comments
Joined Nov 2006
fsx100Nov 29, 2025 4:29 PM
2.2K Comments
Quote from fearziz View quoted comment :
ghetto setup and not feasible for ceiling vents, which is 99% of homes
Thanks for this. Yea, I have ceiling vents, so basically this is only if you have a wall vent?
Nov 29, 2025 4:35 PM
2.2K Comments
Joined Nov 2006
fsx100Nov 29, 2025 4:35 PM
2.2K Comments
Quote from runningout View quoted comment :
In cold climates almost all vents are in the floor or low on the wall.
Not true. I'm in a cold climate, and all my vents are in the ceiling. Really depends on the design of your home.
Nov 29, 2025 4:42 PM
1.7K Comments
Joined Feb 2007
coltrane69Nov 29, 2025 4:42 PM
1.7K Comments
Heat rises, cold air falls. It's not at all as simple as that, but in old school forced air HVAC terms it's gospel.

https://www.lennox.com/residentia...downstairs
Nov 29, 2025 4:54 PM
111 Comments
Joined Dec 2003
trash2931Nov 29, 2025 4:54 PM
111 Comments
Took me a bit to understand that these replace your existing vents and act as HVAC suckers to draw more of the heat/cooling through the vent. I could see a use for these, but yeah, not easy to power.
Nov 29, 2025 4:56 PM
4.6K Comments
Joined Jan 2011
carlson03Nov 29, 2025 4:56 PM
4.6K Comments
Quote from fsx100 View quoted comment :
Thanks for this. Yea, I have ceiling vents, so basically this is only if you have a wall vent?
It works in ceiling vents, I have two different branded ones in ceiling vents, held up with screws. Have them on a smart plug each that is connected to my smarthome and kicks on when heat kicks on or ac kicks on,and off when the furnace turns off.
1
Nov 29, 2025 5:03 PM
839 Comments
Joined Dec 2007
bptexanNov 29, 2025 5:03 PM
839 Comments
I'd avoid this. A fan in the register isn't going to fix airflow issues from poor ductwork. You're better off to bite the bullet and get a tech out to fix the underlying issue -- a leaky duct or insufficiently sized run.
5
Nov 29, 2025 5:03 PM
1.7K Comments
Joined Feb 2007
coltrane69Nov 29, 2025 5:03 PM
1.7K Comments
Quote from trash2931 View quoted comment :
Took me a bit to understand that these replace your existing vents and act as HVAC suckers to draw more of the heat/cooling through the vent. I could see a use for these, but yeah, not easy to power.
As long as you have an AC outlet 12ft away or less, and your HVAC vent is 4"x10", something like this is as simple as lifting your vent cover off the floor, replacing it with this, and plugging this into an AC outlet.

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Nov 29, 2025 5:11 PM
1.7K Comments
Joined Feb 2007
coltrane69Nov 29, 2025 5:11 PM
1.7K Comments

Our community has rated this post as helpful. If you agree, why not thank

Quote from bptexan View quoted comment :
I'd avoid this. A fan in the register isn't going to fix airflow issues from poor ductwork. You're better off to bite the bullet and get a tech out to fix the underlying issue -- a leaky duct or insufficiently sized run.
You're not wrong about this, but you could buy four of these for the price of an HVAC service call. And Unlike an HVAC service call you can return these to Amazon if it doesn't yield any appreciable improvements. I'm not advocating that these devices will be a cure all for people that have balancing issues, but for $25 it's much cheaper than calling a Tech out to tell you that everything's wrong, and that it'll cost $10k to fix it.
1

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