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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.

  • The booster fan can help far-end rooms receive more cool or hot air when long or undersized duct runs limit airflow.

    WooHoo2Youleroy_sunsetsc2

  • The built-in temperature sensing can keep running after the HVAC shuts off to continue pulling conditioned air from the register.

    Johnybrkredmark12345

  • The fan can reduce duct static pressure and improve overall airflow rate through the duct system.

    snives

  • The unit can be a lower-risk experiment because it may be returnable if it does not improve airflow.

    coltrane69

  • The booster fan cannot create airflow that is not already available from the HVAC system.

    ISurfTooMuchsc2

  • The fan noise can be noticeable at higher settings and may be disturbing at night.

    Poppmatick1981r

  • The booster fan may not fix airflow problems caused by leaky ducts or insufficiently sized duct runs.

    bptexanMisio

  • The temperature sensor in the register may read colder than the room, which can reduce temperature accuracy.

    KxrmaJunkie

Common Questions (5)

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

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76 Comments

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Nov 29, 2025 8:34 PM
210 Comments
Joined Feb 2009
Incanus-PrimeNov 29, 2025 8:34 PM
210 Comments
These can be great for the right situation. My current house has floor vents and they worked great until Rosie the Roomba started molesting them.
Nov 29, 2025 10:01 PM
2.5K Comments
Joined Nov 2011

This comment has been rated as unhelpful by Slickdeals users.

Nov 29, 2025 10:07 PM
137 Comments
Joined Feb 2011
migit4096Nov 29, 2025 10:07 PM
137 Comments
it needs to be plugged in, which most of the pictures conveniently do not show on their product page. IMO this tech isnt quite there yet. we need wireless ones and the prices need to come down considerably before it's worth the investment. if you are rich, flair is the company you'd want to go with... but you are looking at thousands of dollars to get setup ($100+ per air vent, every room needs a $100+ temp sensor, and a bridge).
1
Nov 29, 2025 11:06 PM
94 Comments
Joined Oct 2010
dk1123Nov 29, 2025 11:06 PM
94 Comments
I bought a similar product and it would make weird loud noises. Had to return it.
Nov 29, 2025 11:27 PM
503 Comments
Joined Mar 2014
annonymous999Nov 29, 2025 11:27 PM
503 Comments
Do any of these have a air flow sensor in addition to the temp sensor so they can really tell when the heat or the ac is on and boost airflow either in a room that heats and cools poorly?
Nov 30, 2025 12:08 AM
3.2K Comments
Joined Jan 2008
batotmanNov 30, 2025 12:08 AM
3.2K Comments
Quote from fearziz View quoted comment :
ghetto setup and not feasible for ceiling vents, which is 99% of homes
Yeah it's a ghetto item. But being an appraiser for 20+ years… ceiling vents are def not 99% or even 50%. 🤣
Nov 30, 2025 2:42 AM
736 Comments
Joined Sep 2003
voiddwellerNov 30, 2025 2:42 AM
736 Comments
Seems like a good deal. I need the 6x12 and that's only 5% off so I'll wait.

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Nov 30, 2025 3:40 AM
555 Comments
Joined Jan 2004
preston411Nov 30, 2025 3:40 AM
555 Comments
I literally put a small fan on top of my vent with the AC on and it cooled my room in like 10 minutes. If aesthetics mean a lot to you, go with this item, but you likely will get similar results with the fan.
Nov 30, 2025 6:20 AM
874 Comments
Joined Apr 2012
oppman29Nov 30, 2025 6:20 AM
874 Comments
Quote from preston411 View quoted comment :
I literally put a small fan on top of my vent with the AC on and it cooled my room in like 10 minutes. If aesthetics mean a lot to you, go with this item, but you likely will get similar results with the fan.
This is inside the vent so its pulling air into the room, def not the same thing as putting a fan on top of the vent and just moving the air now in the room.
Nov 30, 2025 6:34 AM
47 Comments
Joined Nov 2025
lemonkissNov 30, 2025 6:34 AM
47 Comments
Thank you.
Nov 30, 2025 8:41 AM
256 Comments
Joined Jul 2013
AreebTanvirNov 30, 2025 8:41 AM
256 Comments
Quote from runningout View quoted comment :
In cold climates almost all vents are in the floor or low on the wall.
Northern states have vents on floor, but hot n humid states in South all have ceilings vents
Nov 30, 2025 12:13 PM
28 Comments
Joined Jul 2019
LovelyCaption9819Nov 30, 2025 12:13 PM
28 Comments
I have a different brand and it makes a huge difference in my room. I immediately notice if one of the kids unplugged it because the room will be either colder or hotter without it on. I just ordered 2 of these so I'm hoping it's the same as AC infinity. I read it has less features but in all my years of owning it, I have only ever had it on fan and never messed with any settings. This seems like a great price but hopefully it works as well as my other one.
Nov 30, 2025 1:15 PM
1.4K Comments
Joined Dec 2009
snivesNov 30, 2025 1:15 PM
1.4K Comments
Quote from firebirdude View quoted comment :
It's just a fan that sits in the register? So it increases air flow into that room, but steals it from everywhere else? Because it doesn't create more flow from the HVAC blower...
It reduces the static pressure in the duct, allowing higher flow rate of air overall and also yes to an extent rebalancing the system. The higher the static pressure the less the blower from your HVAC is able to even move making it just burn energy. Gasses didn't move in fixed volumes through fans.
Nov 30, 2025 1:19 PM
1.4K Comments
Joined Dec 2009
snivesNov 30, 2025 1:19 PM
1.4K Comments
Quote from Johnybrk View quoted comment :
Theres no need. When set correctly they work in conjunction with your HVAC. For example if you are using AC you can set the register to keep working until desired temperature is sensed say 68F, it will turn off once the temperature rises above that in the air duct. Same for heat, if the air duct no longer has hot air at 80F (you control the temp) it will turn off. Or plug this into a smart plug.
A good so just get the remote out for the timer if day and seasonal adjustments. Definitely send easier to play with it 3x a day forever instead of spend 15 minutes setting up syncing to my other controls.

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Nov 30, 2025 1:22 PM
1.4K Comments
Joined Dec 2009
snivesNov 30, 2025 1:22 PM
1.4K Comments
Quote from fearziz View quoted comment :
ghetto setup and not feasible for ceiling vents, which is 99% of homes
In the US, ceiling vents are almost exclusively in basements which typically aren't the frequent living spaces where people would be planning to use these.

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