Is Your Room Too
Hot Or Too Cold?

Smart control of the temperature in individual
rooms in your home! 

Turn your home into a Smart Home.

SmartCocoon Booster Fans are the only booster fans fully integrated with NEST thermostats as well as others. You deserve a comfortable room temperature. Not too hot, not too cold, just right throughout the year with SmartCocoon, the best booster fan system. Multiple SmartCocoon booster fans talk to each other in a complete smart home system to provide fully automated control of airflow throughout your home for that Just Right temperature. Enjoy the comfort in every room of your home. Save up to 30% annually on your heating and cooling costs. No special tools are required for installation, and you can do it yourself without any 3rd party installer. We built the SmartCocoon booster fan with you top of mind.

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Size Guide
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Ventilateur d'appoint intelligent pour ventilation/enregistrement
Ventilateur d'appoint intelligent pour ventilation/enregistrement
Ventilateur d'appoint intelligent pour ventilation/enregistrement
Ventilateur d'appoint intelligent pour ventilation/enregistrement
Ventilateur d'appoint intelligent pour ventilation/enregistrement
Ventilateur d'appoint intelligent pour ventilation/enregistrement
Ventilateur d'appoint intelligent pour ventilation/enregistrement
Ventilateur d'appoint intelligent pour ventilation/enregistrement
Ventilateur d'appoint intelligent pour ventilation/enregistrement
Ventilateur d'appoint intelligent pour ventilation/enregistrement
Ventilateur d'appoint intelligent pour ventilation/enregistrement
Ventilateur d'appoint intelligent pour ventilation/enregistrement
Ventilateur d'appoint intelligent pour ventilation/enregistrement
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Customer Reviews

Based on 142 reviews
65%
(92)
20%
(29)
8%
(11)
5%
(7)
2%
(3)
b
beautifulgorgeous
Amazing product amazing quality

This thing is freaking awesome!!! My home always does a good job heating and cooling except for in 2 of the rooms and that's not cool cause we spend most of the time in these rooms. So this smart cocoon booster fan is a fan that you put into your vent and. Lose it like normal and you sing it with your wifi and it makes you able to control every aspect of the device. Fan up and down on different settings how hard it blows how fast it goes and you can even change directions and control every fan in every room to custom tailor it to your desired wants and needs. A brilliant invention that works better than I could have hoped. I bought 2 more and I love them all lol. Imagine having every room in your house custom cool or warm to your desired for each room thatsy goal lol no one wants cold bottoms in the bathroom lol.

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W
Wayne Wastler

The booster fans made a definite difference in the comfort level of our upstairs rooms. They are much more effective when the room doors are kept closed. They definitely brought more cool air to the 2nd floor. Closing the doors helps keep the cool air from settling down the stairs. I order more for two other family members with similar issues.

Thank you so much for recommending us to your family! That is truly the highest compliment we could ask for. We are happy to hear the booster fans are making a real difference for you.

V
Vikas Sumani
Great booster fan

Great booster fan, can be controlled by phone.no more hot or cold upstairs room.

Thanks so much! We’re grateful to hear our fan is helping and appreciate your trust in us.

J
Julie Van Dale
It WORKS!

During this extreme heatwave (June 2025) I was a bit skeptical—but compared to how my 3rd floor felt before I easily installed and synced the Cocoon booster— I’m convinced! I felt an immediate difference in temperature and humidity. I especially like the app and that I can control the fan speed and temperature from my phone. If it works during these extreme temperatures I’m confident it’ll work all the time. Great product 👍🏻

Thank you so much for the kind words and for trusting us during the heatwave! We're so glad to hear the fan made a real difference and that you're enjoying the app. It means a lot to us to have your support!

E
Edward P. Seagram

I find it very suitable for small rooms such as bedrooms

Thanks so much, Edward! We're so happy to see returning customers like you and glad to hear it's working well in your bedroom. It truly means a lot to us!

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Works with smart thermostats &
conventional thermostats as well as other Smart Home devices.

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Read More Smart Cocoon customer reviews

Worked better than expected!

Our SmartCocoon fans have made a significant difference to our home comfort. My adult kids mentioned how much cooler their rooms were without me asking them! I was slightly skeptical about how well SmartCocoon would work but it has surpassed expectations and made a believer out of me.

Finally the rooms are warm!

We bought two SmartCocoon smart vents and they made a huge difference int he comfort in our son's home. I would highly recommend them for anyone with cold rooms in the winter or hot rooms in the summer.

Ahhh sleep at last.

The temperatures in the master bedroom upstairs was always extreme. Stifling hot in the summer and freezing cold in the winter. We installed the SmartCocoon and it moderated the temperature dramatically making it far more comfortable year-round.