Item Weight | 0.01 Ounces |
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Batteries Required | No |
Included components | Cord |

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AC Infinity AIRTITAN T8-N, Crawlspace Basement Ventilator Fan, WiFi App-Compatible Temperature Humidity Controller, IP-55 Rated, Intake
Purchase options and add-ons
Brand | AC INFINITY |
Colour | Stainless Steel |
Electric fan design | Exhaust Fan |
Power source | Corded Electric |
Style | Modern |
Product Dimensions | 4D x 46.1W x 22.9H Centimetres |
Room type | Bedroom |
Special feature | Quiet |
Recommended uses for product | Exhausting, Ventilating, Cooling, Air Circulation, Drying |
Mounting type | Wall Mount |
About this item
- A fan system designed to provide ventilation and moisture control for crawl spaces and basements.
- Creates intake airflow to reduce humidity levels and draw fresh, clean air into your home.
- Dynamic temperature, humidity & VPD programming, with timers, cycles, scheduling, and minimum speed.
- Connect to our app via WiFi or Bluetooth to program automation, view climate data, and receive alerts.
- Design: Intake | Backplate Dimensions: 18 x 9 x 1.6 in. | Airflow: 240 CFM | Noise: 32 Dba | IP55 Rated
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Product Description

Product Description
A high-airflow ventilator fan designed to control the temperature and humidity levels of your crawlspace, basement, attic, and garage. This system reduces humidity levels while expelling odors and stale air from your home. Features a WiFi-enabled LCD with smart thermostat and dehumidistat control, as well triggers, fan speed control, status alerts, and more. Included 12 ft. corded sensor probe plugs into the controller to provide temperature and humidity readings. The heavy-duty build includes a stainless-steel mounting frame and IP-55-rated fans. Features dual 120mm PWM-controlled DC fans that are highly efficient in maximizing airflow at lower noise and power levels.
Smart Programming
The onboard controller features smart programming to keep temperature, humidity, and VPD in check to produce the optimal environment. Set dynamic programs that go beyond on/off triggering and adjust fan speed in response to changing indoor climate. Minimum baseline levels keep the crawlspace fan running at low speeds for consistent airflow, while timer, cycle, and schedule modes add custom on-demand activation. Securely connect to the AC Infinity app via WiFi to utilize automation capabilities from anywhere throughout the day. Remotely access your devices, unlock advance programs, set alarms and notifications, view historical charts, and export CSV data.
Heavy-Duty Performance
This crawlspace fan system is enclosed in heavy-duty stainless steel with spiral fan guards. Utilizing DC motors that are controlled using PWM (Pulse Width Modulation), the fans can maximize airflow while reducing noise and power consumption. In addition, the dual 120mm fans are IP-55 rated to be highly resistant to liquids and dust particles. The motor houses dual-ball bearings that are rated at 67,000 hours and allow this fan system to be mounted horizontally or vertically.

AIRTITAN Series
A weather-proof fan system designed to ventilate crawlspaces, basements, garages, attics, and other areas in your home.

Smart and Quiet Ventilation
Quietly bring in fresh air and remove stale air to make your home safe and comfortable. The AIRTITAN fan system creates airflow to reduce moisture levels that can degrade wood and intensify odors. It can also help exhaust said odors and unwanted heat that can build up to harmful levels.
Key Features
Smart Programming
Select models include a dynamic temperature, humidity, and VPD controls with timers, cycles, scheduling, and WiFi app control.
Quiet PWM DC-Motor
Each system utilizes a DC motor that is controlled using Pulse Width Modulation (PWM), offering quiet and more energy efficient performance.
Heavy-Duty Build
Features a galvanized steel or aluminum mounting frame with fan guards. Rated IP44 to be dust and water resistant for various weather conditions.
Plug and Play
Complete kit includes the fan unit, user manual, corded sensor probe, and everything needed to mount the system and power it through an outlet.
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AC Infinity AIRTITAN T3 Ventilator Fan with Temperature Humidity Controller
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AC Infinity AIRTITAN S7 Ventilator Fan with Speed Controller
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AC Infinity AIRTITAN T7 Ventilator Fan with Temperature Humidity Controller
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AC Infinity AIRTITAN T8 Ventilator Fan, Exhaust
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AC Infinity AIRTITAN T8-N Ventilator Fan, Intake
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Customer Reviews |
3.7 out of 5 stars 8
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4.3 out of 5 stars 646
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4.3 out of 5 stars 17
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4.4 out of 5 stars 625
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4.4 out of 5 stars 812
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4.4 out of 5 stars 237
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Model | AC-ATS3 | AC-ATT3 | AC-ATS7 | AC-ATT7 | AC-ATT8 | AC-ATT8-N |
Unit Size | 9" x 9" | 9" x 9" | 14" x 9" | 14" x 9" | 18" x 9" | 18" x 9" |
Airflow | 120 CFM | 120 CFM | 240 CFM | 240 CFM | 240 CFM | 240 CFM |
Noise | 30 dBA | 30 dBA | 32 dBA | 32 dBA | 32 dBA | 32 dBA |
Power | 2.4 W | 2.4 W | 5.8 W | 5.8 W | 10 W | 10 W |
Controller | 10-Level Fan Speed Controller | Dynamic temperature, humidity, and VPD programming with timers, cycles, scheduling, max/min speed, and WiFi app control | 10-Level Fan Speed Controller | Dynamic temperature, humidity, and VPD programming with timers, cycles, scheduling, max/min speed, and WiFi app control | Dynamic temperature, humidity, and VPD programming with timers, cycles, scheduling, max/min speed, and WiFi app control | Dynamic temperature, humidity, and VPD programming with timers, cycles, scheduling, max/min speed, and WiFi app control |
DC-motor with PWM-control for a quiet and energy efficient performance | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
Heavy-duty steel and aluminum construction and Ingress-protected against dust and liquids. | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
Includes everything needed to mount the fan system and power it through an outlet. | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
Applications | Ventilate, exhaust, and control the temperature and humidity levels of crawlspaces, basements, garages, and attics. | Ventilate, exhaust, and control the temperature and humidity levels of crawlspaces, basements, garages, and attics. | Ventilate, exhaust, and control the temperature and humidity levels of crawlspaces, basements, garages, and attics. | Ventilate, exhaust, and control the temperature and humidity levels of crawlspaces, basements, garages, and attics. | Ventilate, exhaust, and control the temperature and humidity levels of crawlspaces, basements, garages, and attics. | Ventilate, exhaust, and control the temperature and humidity levels of crawlspaces, basements, garages, and attics. |
Product information
Technical Details
Additional Information
ASIN | B07FX3NTSN |
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Customer Reviews |
4.4 out of 5 stars |
鶹 Rank |
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Date First Available | July 18 2018 |
Manufacturer | AC Infinity |
Place of Business | Walnut, CA 91789, US |
Feedback
From the brand

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AC Infinity is a technology company that specializes in environmental controls for audio/video and HVAC. The company was founded on the principle of working closely with customers to develop great products. Dependable service and a commitment to product quality are the foundations of the business's values.
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Customer reviews
Top reviews from Canada
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- Reviewed in Canada on February 21, 2025Verified PurchaseI had a bad crawl space smell coming through the ducts. The house is almost 40 years old and I had left things in the crawl space like books and old clothes for years that I'm sure didn't help. We live in British Columbia where it's rainy all winter, probably made it worse. Anyway, I purchased two Airtran fans, one as an intake and the other outflow. The installation was fairly simple but I admit I got my young son down there to do it because I never would have been able to do it right. He placed them where the original screens the builder had installed on each side of the house for crawl space airflow. For the most part they fit nicely, I think the problem my son encountered had more to do with where the builder placed the screens and a 2x4 that was in the way so he had to do a minor modification that I think most men who are handy wouldn't see as a big issue. We completely cleaned out and shop vac'd the crawl space and then sprayed it with Odoban first using one of those outdoor sprayers you use for spraying trees. We left some extra house fans down there for about a week get the air really flowing. The smell is completely gone, I'm so happy because I'd had two separate companies come visit and quoted me $3k-$15k to remediate the crawlspace. This cost me around $400 including the Odoban that I got at the hardware store. The floor of the crawl space is concrete not dirt. Hope this helps someone, I saved a lot of money with this solution.
- Reviewed in Canada on October 31, 2020Verified PurchaseQuiet and efficient
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Reviewed in Canada on February 11, 2020Verified Purchaseil devrait nous informé mieux un model qui pousse air et autre rentre air ... ok on peux ouvrir et tourné la fan ...
le T8 entre air ... la programmation pas très bien explique ....fait la job.
- Reviewed in Canada on August 2, 2020Verified PurchaseA+++
Top reviews from other countries
- Emily R.Reviewed in the United States on June 18, 2025
5.0 out of 5 stars Read everything in this review
Verified PurchaseThis is our third summer using it and would probably not buy again, but not because of the product… (more below)
Pros:
-thermometer allows it to automatically turn on to cool the room even if the AC isn’t on.
-super quiet fan
Cons:
-our vent is larger than this product so it looks a little janky but still works well
FYI:
-our living room has a HORRIBLE time regulating temperature which is why we bought this. It definitely does work, but not well enough to fix our issue for us. I would buy it again if it was needed in a smaller room, but I would not buy again for my large living room.
Emily R.Read everything in this review
Reviewed in the United States on June 18, 2025
Pros:
-thermometer allows it to automatically turn on to cool the room even if the AC isn’t on.
-super quiet fan
Cons:
-our vent is larger than this product so it looks a little janky but still works well
FYI:
-our living room has a HORRIBLE time regulating temperature which is why we bought this. It definitely does work, but not well enough to fix our issue for us. I would buy it again if it was needed in a smaller room, but I would not buy again for my large living room.
Images in this review
- T. BonnerReviewed in the United States on August 29, 2024
5.0 out of 5 stars Nice fan works with bluetooth app
Verified PurchaseI somehow managed to order the intake model of this fan instead of the exhaust model but it was easy to reverse the flow following the instructions in the manual for the single fan T3/T7 models. Simply remove 4 screws in the four corners of each fan on the backside to remove the mounting plate and 4 more from the corners of each fan on the front face to free the fans and flip them over.
In doing so I noticed a small battery like a CR2032 on the circuit board which allows the fan to keep the settings when it is not connected to power. So it can be programmed before you get in a crawl space to install it.
It came with 4 machine screws and 4 wood screws with screw anchors but if mounting in a standard cement block opening you need a masonry bit and probably concrete screws.
The really nice feature is the phone app that controls via bluetooth or wifi which is easier to program the fan than pushing buttons on the fan and allows additional programming features like timers. It also provides a graph of the humidity and temperature readings so you can see how it is working. However the instructions for connecting the app to the device were out of date. It was necessary to choose add device then select SMART HVAC and then select AIRTITAN. Customer service was good at answering questions before I ordered and after the purchase.
- GourdReviewed in the United States on January 25, 2025
4.0 out of 5 stars Great programmable features. Useless Bluetooth
Verified PurchaseBluetooth never connects. That is not hyperbole. Even in Bluetooth connect mode, three different phones cannot see it.
This isn’t a big deal in my application as the panel can be directly programmed and had features I wanted (such as the ability to set a buffer for automatic control by humidity so the unit would stay on until the humidity was five points below the trigger point and the ability to trigger other cable connected devices.)
However for others this could be a deal breaker. Make sure your unit has functional Bluetooth right out of the package before doing any install work!
- W. MarcisReviewed in the United States on November 24, 2024
5.0 out of 5 stars Quiet and programmable.
Verified PurchaseIt is in my unfinished lower level to reduce radon and it works. It is good looking and quiet and programmable for temperature, humidity, and timers. I have it on a schedule to reduce radon and it also lowers the humidity. It needs an intake air source for flow through ventilation. Go to their website for intake fans and flex tubing. Or get a second one for direct intake located at the other end of the space. The instruction book explains the settings. The fans can be reversed for in or out flow.
Customer service is excellent. My fan as delivered from 鶹 was the old model, which did not match the description. AC Infinity sent the new correct model direct from the factory with a prepaid shipping label to return the former model.
- MatthewReviewed in the United States on January 28, 2024
5.0 out of 5 stars Used above a door into bedroom with very poor air circulation
Verified PurchaseThis has been a game-changer for us-- we live in an apartment with open vents in the wall above the bedroom doors for circulation-- but the room is at the end of the AC run, and the single register just can't do enough to properly heat or cool the room. We can't keep the bedroom door open at night because of a toddler and cats or this probably wouldn't be a problem.
Additionally (and more importantly) we bought a CO2 meter to see how bad our uncirculated air was getting overnight, and we were shocked to find that our levels were as high as 1600ppm overnight-- way higher than is healthy. I installed this fan in the footprint of the door vent to pull fresh hallway air into the room, and it has reduced our levels to 1100-1200---still not great but WAY better than before-- and it's also helped with the temperature control as well-- I love that it's adjustable-- at 7/10 it's a mild background whir that's nearly inaudible above the existing air filter we have in the room-- neither my wife or I find it bothersome. I also love that the display LED can be turned off-- really grateful for this fan!!!