Verdict overview
- Thickness 9.1
- worth the money 8.1
- Temperature Control 8.9
- Vacuum strength 7.0
- Easy installation 9.4
- Efficient Energy Use 9.3
- Noise level 8.6
Pros
A duct fan designed to boost airflow in HVAC systems and ventilate home spaces like attics and workshops.
Features a variable fan speed controller, enabling you to optimize airflow and noise level for any application.
Unibody die cast construction with no welded seams reduces vibration while ensuring smoother airflow.
Cons
Low static pressure.
Tech specs
air flow capacity | 265 Cubic Feet Per Minute |
blade material | Plastic |
recommended uses for product | Indoor |
color | Black |
electric fan design | Blower |
special feature | Speed Controller |
wattage | 37 watts |
blade length | 590 Inches |
noise level | 35 dB |
customer reviews | 4.3 4.3 out of 5 stars 7,716 ratings 4.3 out of 5 stars |
indoor outdoor usage | Indoor |
product dimensions | 7.28D x 5.9W x 5.9H |
specification met | CE |
item weight | 3.31 pounds |
cable length | 3 Feet |
voltage | 120 Volts |
control method | App |
power source | AC |
room type | Basements, Bathrooms, Kitchens, Workshops |
collection name | Home |
finish type | Matte |
style | Duct Fan |

Product Overview
My experience with the AC Infinity RAXIAL S4 Inline Booster Duct Fan has been nothing short of amazing. I have had this fan installed in my home for several months now and it has made a tremendous difference in the air flow throughout my entire home. The fan itself is incredibly well built, with a unibody die cast construction that reduces vibration while ensuring smoother airflow. The AC brushless motor with steel blades and lubricated bearings makes sure that the fan runs quietly, which is great for those times when you need to keep noise to a minimum.
The installation was also surprisingly easy, thanks to the included instructions and diagrams. I was able to get it up and running in just a few minutes without any problems. Additionally, the variable fan speed controller allows me to customize the amount of airflow and noise level according to my needs, so I can use it as needed without having to worry about it being too loud or too weak.

The RAXIAL S4 Inline Booster Duct Fan is perfect for anyone who needs an efficient way to boost airflow in their HVAC system or ventilate their home spaces like attics and workshops. Its also great for anyone looking for an energy efficient way to keep their home cool during hot summer days. Its not only reliable but also very durable, making it a great long term investment for anyone looking for an efficient ventilation solution.
Overall, Im very pleased with my experience with the AC Infinity RAXIAL S4 Inline Booster Duct Fan. Its easy to install and use, energy efficient, reliable, and built from high quality materials that ensure years of lasting performance. I would highly recommend this product to anyone looking for an effective way to improve air flow in their home or increase ventilation in areas like attics or workshops.
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