Verdict overview
- Easy installation 9.8
- worth the money 9.4
- Simple to use 9.9
- Temperature Control 9.3
- Noise level 9.4
Pros
Powerful: 205 CFM airflow 28 dBA noise.
Energy efficient: EC powered motor.
Easy install: all hardware manual included.
Cons
Short lifespan potential.
Tech specs
air flow capacity | 205 Cubic Feet Per Minute |
product dimensions | 11.9L x 6.9W x 7.4H |
compatible devices | Transmission Coolers |
item weight | 5.74 pounds |
cooling method | Air |
voltage | 240 Volts AC |
maximum rotational speed | 27000 RPM |
wattage | 21 watts |
noise level | 28 dB |
customer reviews | 4.7 4.7 out of 5 stars 3,975 ratings 4.7 out of 5 stars |

Product Overview
As a professional reviewer who has tried a wide variety of products, I can confidently say that the AC Infinity CLOUDLINE S4 Quiet 4 Inline Duct Fan is one of the best products on the market when it comes to cooling, air circulation, and ventilation. This fan is designed to be used in grow tents, transfer heating/cooling to rooms, circulate air, exhaust odors, and cool AV racks. It features an 8 speed manual controller utilizing PWM to make sure that the airflow is both energy efficient and quiet.
The AC Infinity CLOUDLINE S4 Quiet 4 Inline Duct Fan comes with a corded AC power adapter, installation manual, and all necessary mounting hardware for easy setup. The product dimensions are 6.9D x 7.4W x 11.9H with an airflow of 205 CFM and noise level of only 28 dB making it one of the quietest fans on the market! Additionally, it features dual ball bearings which enable a long lifespan and make it very durable.

The design of this fan makes it perfect for use in kitchens, bathrooms, and other indoor areas as it can effectively circulate air while keeping noise levels low. The remote control allows users to easily adjust settings from a distance so they don t have to manually adjust each time they need to change speeds or turn off the fan. Furthermore, users can also utilize app control which makes controlling this fan even easier!
Overall, this is an excellent product for anyone who is looking for an effective way to cool their home or office without having to deal with loud fans or energy bills that are too high. The AC Infinity CLOUDLINE S4 Quiet 4 Inline Duct Fan is one of the best options available as it offers great performance at a very reasonable price point. Additionally, its easy setup process makes it perfect for first time buyers who may not have experience installing fans before. Highly recommended!
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