---
product_id: 68410154
title: "AC Infinity CLOUDLINE PRO S8, Quiet 8” Inline Duct Fan"
brand: "ac infinity"
price: "€ 502.45"
currency: EUR
in_stock: true
reviews_count: 13
category: "Ac Infinity"
url: https://www.desertcart.com.cy/products/68410154-ac-infinity-cloudline-pro-s8-quiet-8-inline-duct-fan
store_origin: CY
region: Cyprus
---

# 807 CFM airflow powerhouse Ultra-quiet 39 dBA noise level 10-speed precision control AC Infinity CLOUDLINE PRO S8, Quiet 8” Inline Duct Fan

**Brand:** ac infinity
**Price:** € 502.45
**Availability:** ✅ In Stock

## Summary

> 💨 Quietly dominate your airflow game with CLOUDLINE PRO S8!

## Quick Answers

- **What is this?** AC Infinity CLOUDLINE PRO S8, Quiet 8” Inline Duct Fan by ac infinity
- **How much does it cost?** € 502.45 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/68410154-ac-infinity-cloudline-pro-s8-quiet-8-inline-duct-fan)

## Best For

- ac infinity enthusiasts

## Why This Product

- Trusted ac infinity brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Whisper-Quiet Power:** Experience robust 807 CFM airflow at a barely-there 39 dBA—perfect for focused workspaces and stealthy grow rooms.
- • **Energy-Smart EC Motor:** Brushless PWM-controlled motor delivers high efficiency with minimal heat and noise, saving energy without compromise.
- • **Built to Last & Perform:** Durable polypropylene housing with dual ball bearings guarantees long-term reliability and smooth operation.
- • **Effortless Climate Mastery:** Fine-tune your environment with 10-speed wired and UIS controller compatibility for ultimate airflow precision.
- • **Engineered for High Resistance:** Mixed flow design with stator blades and hydrodynamic wind circles ensures consistent airflow even in challenging duct setups.

## Overview

The AC Infinity CLOUDLINE PRO S8 is a premium 8-inch inline duct fan delivering 807 CFM airflow at an ultra-quiet 39 dBA noise level. Featuring a brushless EC motor with PWM control and a 10-speed wired controller compatible with UIS systems, it offers precise, energy-efficient ventilation ideal for hydroponic grow rooms, AV closets, and server cooling. Its mixed flow blade design excels in high resistance ducting, while durable construction ensures lasting performance.

## Description

desertcart.com: AC Infinity CLOUDLINE PRO S8, Quiet 8” Inline Duct Fan | With Speed Controller - EC Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics : Patio, Lawn & Garden

Review: Powerful Ventilation Solution for Mining Room – Quiet and Efficient - The AC Infinity CLOUDLINE S8 PRO has been a total game changer for venting my miner room. The 8” inline duct fan moves a huge amount of air while still being surprisingly quiet thanks to the EC motor. The 10-speed controller makes it easy to fine-tune airflow depending on the temperature load, and I’ve noticed a big difference in keeping my miners cool and stable. Build quality is excellent — sturdy housing, smooth fan operation, and the controller feels responsive and reliable. Installation was straightforward with the included hardware, and once running, it just works flawlessly. ✅ Pros: Moves a lot of air with quiet operation 10-speed controller allows for precise airflow control Solid build quality, built to last EC motor is energy-efficient and quiet Perfect for grow tents, server rooms, or mining setups ❌ Cons: Higher price point than basic fans (but worth it for performance and reliability) Ducting not included, so you’ll need to purchase separately 💡 Tips: Pair it with insulated ducting to reduce noise further. Position exhaust outside or into a larger ventilated area to prevent recirculating hot air. Use a temperature/humidity controller with it for fully automated cooling. Mount with rubber isolators if possible to cut down on vibration. Bottom Line: This fan is a must-have for serious ventilation needs. If you’re running miners, servers, or even grow tents, the S8 PRO is a reliable, efficient, and quiet way to keep heat under control. Well worth the investment.
Review: Great fan, can be dangerous though - The fan works great and has a wide range of performance that allows you to run this thing at any speed between silent and very loud. I use mine as part of a DIY ventilation system for an old apartment and it provides loads of air movement and static pressure. At full blast, I measured its power draw at 165 watts. The fan is notably very efficient and can still move a surprising amount of air at its lowest speeds with around just 5-10 watts of power usage. (Though you won't be ventilating a whole space at that level.) One thing to seriously note though: This fan can be a real safety hazard if not used correctly. It should really have some feature to kill the power easier since at full blast this fan will happily consume any nearby debris and probably result in injury if you were to get your hand in it. There is no built in grill or safety screen. The controller allows for the selection of 10 speeds, but requires you to loop through to the highest speed before it will shut off. Additionally, when you remove the controller by disconnection, the fan defaults to FULL power. I had an incident where the fan swallowed a bag of small screws and I had to hastily chase down the power plug in order to shut it off. I guess as a testament to its durability though the fan didn't seem to suffer any damage. I have since included a shutoff switch in-line with the power cord.

## Features

- Designed to ventilate hydroponic grow rooms, transfer heating/cooling, circulate air, cool AV closets, exhaust odors.
- Features a wired 10-speed fan controller; also compatible with all UIS controllers with intelligent programming.
- PWM-controlled EC motor provides quiet and energy-efficient performance with minimal heat and noise.
- Mixed flow design with stator blade and hydrodynamic wind circles enables airflow delivery in high resistance areas.
- Duct Size: 8” | Dimensions: 8.5 x 11.9 x 9.2 in. | Airflow: 807 CFM | Noise: 39 dBA | Bearings: Dual Ball

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07J9PTYRN |
| Air Flow Capacity | 807 cfm |
| Best Sellers Rank | #1,641 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #1 in Hydroponic Ventilation Equipment |
| Blade Length | 8 inches |
| Blade Material | Plastic |
| Brand | AC Infinity |
| Brand Name | AC Infinity |
| Cable Length | 8 feet |
| Collection Name | Inline Duct Fans |
| Color | Pro Speed Controller for S8 |
| Control Method | App |
| Controller Type | Button Control |
| Customer Reviews | 4.7 out of 5 stars 1,239 Reviews |
| Electric Fan Design | Exhaust Fan |
| Electric fan design | Exhaust Fan |
| Finish Type | Matte |
| Global Trade Identification Number | 00819137020849 |
| Included Components | Cord, Remote |
| Indoor Outdoor Usage | Indoor |
| Installation Type | inline |
| Item Dimensions D x W x H | 8.5"D x 11.9"W x 9.2"H |
| Item Weight | 0.27 g |
| Material | Polypropylene |
| Model Name | CLOUDLINE S8 PRO |
| Model Number | AI-CLS8 |
| Motor Type | Brushless |
| Mounting Type | Downrod Mount |
| Noise Level | 39 db |
| Number of Blades | 8 |
| Number of Power Levels | 10 |
| Number of Speeds | 8 |
| Part Number | AI-CLS8 |
| Power Source | AC |
| Product Dimensions | 8.5"D x 11.9"W x 9.2"H |
| Recommended Uses For Product | Inline Duct Fan |
| Room Type | Indoor |
| Size | 8-Inch |
| Special Features | Programmable |
| Specification Met | CE, ETL, RoHS |
| Style | Cloudline S8 |
| UPC | 819137020849 |
| Unit Count | 1 Count |
| Voltage | 12 volts |
| Wattage | 230 watts |

## Product Details

- **Brand:** AC Infinity
- **Color:** Pro Speed Controller for S8
- **Electric fan design:** Exhaust Fan
- **Mounting Type:** Downrod Mount
- **Power Source:** AC
- **Product Dimensions:** 8.5"D x 11.9"W x 9.2"H
- **Recommended Uses For Product:** Inline Duct Fan
- **Room Type:** Indoor
- **Special Feature:** Programmable
- **Style:** Cloudline S8

## Images

![AC Infinity CLOUDLINE PRO S8, Quiet 8” Inline Duct Fan - Image 1](https://m.media-amazon.com/images/I/61yPQAT2ZNL.jpg)
![AC Infinity CLOUDLINE PRO S8, Quiet 8” Inline Duct Fan - Image 2](https://m.media-amazon.com/images/I/61qh0zlE6ML.jpg)
![AC Infinity CLOUDLINE PRO S8, Quiet 8” Inline Duct Fan - Image 3](https://m.media-amazon.com/images/I/61B4-3IcMGL.jpg)
![AC Infinity CLOUDLINE PRO S8, Quiet 8” Inline Duct Fan - Image 4](https://m.media-amazon.com/images/I/61B8EwuR7nL.jpg)
![AC Infinity CLOUDLINE PRO S8, Quiet 8” Inline Duct Fan - Image 5](https://m.media-amazon.com/images/I/71CDBlYtPJL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: Basement cigar room. 2 questions:  Can this be mounted in the ceiling between studs with a drop ceiling? and 2: how many 6" inlets should be installed**
A: I’m using this for exhaust in my cigar room, third floor and open hang from the ceiling in a window bay.  For my space, a straight line single inlet was adequate.  I added a noise suppression canister so that acts as my 8” inlet.

For your purposes, it’s just a matter of how much space you have between joists, and even more so, between the flooring above and the drop ceiling.  The fan itself will work fin in that environment if it fits physically.  

Depending on your space, you might be fine with a single 8” inlet (or whatever size matches your fan).  If you need an additional inlet, keep them in a straight line if at all possible and make the one farthest from the fan smaller.  So if you have an 8” fan, you’d step the duct down to 6”, then a 6” inlet at the end of that, step the duct down again to 4” and have a 4” inlet at the very end.

**Q: Do you have to use controller or just plug fan in on a switched circuit?**
A: When I plug into the outlet without the controller, the fan runs. Not sure if it is set to the max setting. In case your controller is broke or want it to run continuously.

**Q: I need to mount this outside to blow air into a small space. Can it tolerate getting rained on?**
A: Yes you can mount it outside. As long as you properly shield the unit from the elements this fan will work beautifully to bring the outside air in, which is precisely what I did.
I created a window mount by using flat pieces of plywood that I cut a hole through that's just large enough to fit the Infinity cloud line t8 through a double hung window (actually the slightest bit larger) that I filled in the gap with gaff tape for a solid gasket seal. To shield it from the rain and snow I built a roof that slopes at a 45 degree angle so that all the moister jets off the enclosure. I filled in the triangle on the side so that all the intake air comes from the bottom of the unit where I installed a screen to keep all the insects out. Finally to create a lasting seal I added silicon to all the joints including a piece of plexiglass that I attached  to the 45 degree slope roof so that it is set for decades of whatever the outdoor weather presents. I have been operating this fan with this method for about 2 years including during heavy rains for days on end. I have had zero problems, and you will too provided you follow my instructions as a guide. This is the best possible window fan that could ever be created and has the huge advantage of being able to employ a flexible duct to direct the flow of air wherever you want it. Highly recommended as long as you are slightly handy and creative.

**Q: I lost the Intelligent programming device**
A: You should message the seller.  This is not a question.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Powerful Ventilation Solution for Mining Room – Quiet and Efficient
*by K***L on August 30, 2025*

The AC Infinity CLOUDLINE S8 PRO has been a total game changer for venting my miner room. The 8” inline duct fan moves a huge amount of air while still being surprisingly quiet thanks to the EC motor. The 10-speed controller makes it easy to fine-tune airflow depending on the temperature load, and I’ve noticed a big difference in keeping my miners cool and stable. Build quality is excellent — sturdy housing, smooth fan operation, and the controller feels responsive and reliable. Installation was straightforward with the included hardware, and once running, it just works flawlessly. ✅ Pros: Moves a lot of air with quiet operation 10-speed controller allows for precise airflow control Solid build quality, built to last EC motor is energy-efficient and quiet Perfect for grow tents, server rooms, or mining setups ❌ Cons: Higher price point than basic fans (but worth it for performance and reliability) Ducting not included, so you’ll need to purchase separately 💡 Tips: Pair it with insulated ducting to reduce noise further. Position exhaust outside or into a larger ventilated area to prevent recirculating hot air. Use a temperature/humidity controller with it for fully automated cooling. Mount with rubber isolators if possible to cut down on vibration. Bottom Line: This fan is a must-have for serious ventilation needs. If you’re running miners, servers, or even grow tents, the S8 PRO is a reliable, efficient, and quiet way to keep heat under control. Well worth the investment.

### ⭐⭐⭐⭐⭐ Great fan, can be dangerous though
*by A***Y on July 28, 2025*

The fan works great and has a wide range of performance that allows you to run this thing at any speed between silent and very loud. I use mine as part of a DIY ventilation system for an old apartment and it provides loads of air movement and static pressure. At full blast, I measured its power draw at 165 watts. The fan is notably very efficient and can still move a surprising amount of air at its lowest speeds with around just 5-10 watts of power usage. (Though you won't be ventilating a whole space at that level.) One thing to seriously note though: This fan can be a real safety hazard if not used correctly. It should really have some feature to kill the power easier since at full blast this fan will happily consume any nearby debris and probably result in injury if you were to get your hand in it. There is no built in grill or safety screen. The controller allows for the selection of 10 speeds, but requires you to loop through to the highest speed before it will shut off. Additionally, when you remove the controller by disconnection, the fan defaults to FULL power. I had an incident where the fan swallowed a bag of small screws and I had to hastily chase down the power plug in order to shut it off. I guess as a testament to its durability though the fan didn't seem to suffer any damage. I have since included a shutoff switch in-line with the power cord.

### ⭐⭐⭐⭐⭐ Great inline style fan , would definitely recommend
*by H***W on April 21, 2026*

This fan is seriously solid. The AC Infinity CLOUDLINE S8 PRO is super quiet for how powerful it is, and the airflow is no joke—it moves a lot of air without sounding like a jet engine. The 10-speed controller is easy to dial in, and it’s nice having that fine control. Build quality feels premium and it just runs smooth and reliable. Definitely overkill for small setups, but perfect if you need strong, efficient ventilation that you can trust long-term.

## Frequently Bought Together

- AC Infinity CLOUDLINE PRO T8, Quiet 8” Inline Duct Fan with Temperature Humidity VPD Controller, WiFi Integrated App Control - Ventilation Exhaust Fan for Heating Cooling, Grow Tents, Hydroponics
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- AC Infinity Flexible 8-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 25-Feet Long for Heating Cooling Ventilation and Exhaust

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-08-16*