---
product_id: 96203675
title: "AC Infinity CLOUDLINE S8 PRO, Quiet 8” Inline Duct Fan with 10-Speed Controller, EC-Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics"
brand: "ac infinity"
price: "€ 299.04"
currency: EUR
in_stock: true
reviews_count: 13
category: "Ac Infinity"
url: https://www.desertcart.pt/products/96203675-ac-infinity-cloudline-s8-pro-quiet-8-inline-duct-fan
store_origin: PT
region: Portugal
---

# 807 CFM airflow powerhouse Ultra-quiet 39 dBA noise level 10-speed precision control AC Infinity CLOUDLINE S8 PRO, Quiet 8” Inline Duct Fan with 10-Speed Controller, EC-Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics

**Brand:** ac infinity
**Price:** € 299.04
**Availability:** ✅ In Stock

## Summary

> 💨 Elevate your air game with silent power and precision control!

## Quick Answers

- **What is this?** AC Infinity CLOUDLINE S8 PRO, Quiet 8” Inline Duct Fan with 10-Speed Controller, EC-Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics by ac infinity
- **How much does it cost?** € 299.04 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/96203675-ac-infinity-cloudline-s8-pro-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

- • **Energy-Efficient EC Motor:** PWM-controlled EC motor ensures minimal heat generation and low power consumption without sacrificing performance.
- • **Powerful Airflow Delivery:** Delivers a robust 807 CFM to efficiently ventilate, cool, and exhaust odors in high-resistance duct setups.
- • **Whisper-Quiet Performance:** Operates at a barely-there 39 dBA, perfect for noise-sensitive environments like home offices or grow tents.
- • **Customizable Speed Control:** 10-speed wired controller with memory function lets you dial in the perfect airflow and resume settings after power outages.
- • **All-Inclusive Installation Kit:** Comes with mounting brackets, hose clamps, and a detailed manual for a hassle-free, professional-grade setup.

## Overview

The AC Infinity CLOUDLINE S8 PRO is a premium 8-inch inline duct fan engineered for high-efficiency ventilation in hydroponic grow rooms, HVAC booster setups, and odor control. Featuring a whisper-quiet 39 dBA EC motor, 807 CFM airflow, and a versatile 10-speed controller, it combines energy efficiency with customizable performance. Designed for easy installation and durable operation, it’s the go-to choice for professionals seeking silent, powerful air circulation.

## Description

AC Infinity is a technology company that specializes in environmental controls for agricultural and HVAC applications. Our smart controllers and integrated grow equipment are designed to work together to create the perfect climate for your plants. Grow Tent Systems Visit the Store Grow Tent Systems Visit the Store Grow Ventilation & Circulation Visit the Store Grow Ventilation & Circulation LED Grow Lights Visit the Store LED Grow Lights Environmental Controllers Visit the Store Environmental Controllers

Review: My Greenhouse - Sorry I didn't take pictures of the unboxing because this thing is packaged so well in terms of padding and just an overall esthetic that you get when the packaging wows you. Phones are a great example of this esthetic and this purchase was the same - just like "Oh wow...". I probably did not need this nice of a fan, but after reading the reviews, I thought it might not be a bad idea to step up to something that was so highly praised. And the reviews are not wrong, this is very high quality at a reasonable price. It is powerful and very quiet, although noise is not something that is going to bother me in the greenhouse. As others have noted, the installation felt weird because you need to take out the middle bit to screw down the base, but it makes sense it would work like that. The clamps are quite sturdy and fancy looking. They work well to snug up so that there won't be any vibration. Using it in my teeny little greenhouse, just one day's worth of experience. It didn't bring down the temperature right away, not as much as I hoped anyway. The little greenhouse that could goes well past 100 degrees some days, when it's not even hot outside. I don't have an inlet (yet), but I do have a gizmo that raises the roof vent when it gets hot. Oh well, TMI, here's a pic. Nice fan, buy it!
Review: The Rolls-Royce of exhaust fans - This is my third, and likely last, exhaust fan I've bought for a project. I wanted an exhaust system for our cat's litter box cabinet so that it would create a small amount of negative pressure and pull the bad odors outside. This fan is absolutely perfect in every possible way and has far exceeded my expectations. I arrived at this fan, after purchasing two others that were just too loud, as the noise seemed to bother the cat. I installed 2" PVC in the wall behind where the cabinet is, because I needed something small enough to fit. I then had a 90 degree elbow coming out of the wall, through a cover plate and then going into the back of the cabinet. In the attic, I installed a 2" to 4" duct adapter onto the 2" pipe, ran 25' of flex duct to this fan, and then another 16' run of duct to the roof vent. While the first two fans where very noisy, even at the lowest speeds, this one is virtually silent. I'm running it on level 2 and cannot hear anything inside the cabinet or in the house. Since I'm restricting the intake to only 2", anything above level 2 would likely just be a waste of power. This setup is working perfectly and creates more than enough exhaust to do the job and it does it in silence. The prior fans moved the air ok but had a really annoying hum that could be heard through the ductwork and also inside the house through the insulated ceiling. I hear nothing with this one. In addition to the above, the fan is rock solid and came with EVERYTHING one could possibly need to install it, including hose clamps. It's almost overkill but shows attention to detail. It also came with a very nice instruction book (yes, it's a substantial book) with detailed instructions on every aspect of installation and operation. The speed controller is very nice and easy to use. I just set it to my desired level and forget it. It will remember its current setting and resume after a power outage. This fan cost a bit more but is absolutely worth every penny paid. The difference in quality and quietness cannot be matched. I could not be happier, cat is happy, and we have an odor-free home.

## 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 Cubic Feet Per Minute |
| Best Sellers Rank | #1,737 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 |
| Control Method | App |
| Controller Type | Button Control |
| Customer Reviews | 4.8 out of 5 stars 10,579 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 |
| Is Product Cordless | No |
| Item Dimensions D x W x H | 1.5"D x 11.93"W x 9.17"H |
| Item Weight | 0.01 Ounces |
| Manufacturer | AC Infinity |
| Material | Plastic |
| Model Name | CLOUDLINE S8 PRO |
| Model Number | AI-CLS8 |
| Motor Type | Brushless |
| Mounting Type | Tabletop Mount |
| Noise Level | 39 Decibels |
| Number of Blades | 8 |
| Number of Power Levels | 10 |
| Number of Speeds | 8 |
| Part Number | AI-CLS8 |
| Power Source | Corded Electric |
| Product Dimensions | 1.5"D x 11.93"W x 9.17"H |
| Recommended Uses For Product | Home, Indoor |
| Room Type | Bathroom, Kitchen |
| Size | 8-Inch |
| Special Features | Remote Controlled |
| Specification Met | CE, ETL, RoHS |
| Standby Power Shutoff | efficient |
| Style | Modern |
| UPC | 819137020849 |
| Unit Count | 1 Count |
| Voltage | 12 Volts |
| Wattage | 230 watts |

## Product Details

- **Brand:** AC Infinity
- **Color:** Pro Speed Controller
- **Electric fan design:** Exhaust Fan
- **Mounting Type:** Tabletop Mount
- **Power Source:** Corded Electric
- **Product Dimensions:** 1.5"D x 11.93"W x 9.17"H
- **Recommended Uses For Product:** Home, Indoor
- **Room Type:** Bathroom, Kitchen
- **Special Feature:** Remote Controlled
- **Style:** Modern

## Images

![AC Infinity CLOUDLINE S8 PRO, Quiet 8” Inline Duct Fan with 10-Speed Controller, EC-Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics - Image 1](https://m.media-amazon.com/images/I/61yPQAT2ZNL.jpg)
![AC Infinity CLOUDLINE S8 PRO, Quiet 8” Inline Duct Fan with 10-Speed Controller, EC-Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics - Image 2](https://m.media-amazon.com/images/I/61qh0zlE6ML.jpg)
![AC Infinity CLOUDLINE S8 PRO, Quiet 8” Inline Duct Fan with 10-Speed Controller, EC-Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics - Image 3](https://m.media-amazon.com/images/I/61B4-3IcMGL.jpg)
![AC Infinity CLOUDLINE S8 PRO, Quiet 8” Inline Duct Fan with 10-Speed Controller, EC-Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics - Image 4](https://m.media-amazon.com/images/I/61B8EwuR7nL.jpg)
![AC Infinity CLOUDLINE S8 PRO, Quiet 8” Inline Duct Fan with 10-Speed Controller, EC-Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics - Image 5](https://m.media-amazon.com/images/I/71J9tAQeuEL.jpg)

## Available Options

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

## Questions & Answers

**Q: We purchased the fan it is only 2 months old.  Why does it turn off constantly even as the light remains on?**
A: Might be defective or you have it on the wrong settings. Try unplugging it and if it continues to to the same then it might be defective

**Q: Can this fan be used as an inline blower for ventilating a blowerless kitchen range hood? i.e. is it rated for exhausting steam and grease?**
A: I would have to say no for grease but yes it will work to vent steam even though it is not rated for this I have used them in my bathroom for over a year now and have not had any issue.

**Q: What happens if power goes out? Does it kick back on to same speed settings? How long would it hold thise settings with power out?**
A: If power is removed the fan will restart at same speed as operating before powered off. As far as how long will it retain speed setting, not sure but at least three weeks.

**Q: Would this be used in a cigar room in conjunction with a air purifier? Looking to build a cigar lounge in my house.**
A: i think so - i used it to improve air circulation in a 3 story house. i think it would work well for your purpose. it is quiet and has adjustable flow rate.

## Customer Reviews

### ⭐⭐⭐⭐⭐ My Greenhouse
*by S***E on April 20, 2026*

Sorry I didn't take pictures of the unboxing because this thing is packaged so well in terms of padding and just an overall esthetic that you get when the packaging wows you. Phones are a great example of this esthetic and this purchase was the same - just like "Oh wow...". I probably did not need this nice of a fan, but after reading the reviews, I thought it might not be a bad idea to step up to something that was so highly praised. And the reviews are not wrong, this is very high quality at a reasonable price. It is powerful and very quiet, although noise is not something that is going to bother me in the greenhouse. As others have noted, the installation felt weird because you need to take out the middle bit to screw down the base, but it makes sense it would work like that. The clamps are quite sturdy and fancy looking. They work well to snug up so that there won't be any vibration. Using it in my teeny little greenhouse, just one day's worth of experience. It didn't bring down the temperature right away, not as much as I hoped anyway. The little greenhouse that could goes well past 100 degrees some days, when it's not even hot outside. I don't have an inlet (yet), but I do have a gizmo that raises the roof vent when it gets hot. Oh well, TMI, here's a pic. Nice fan, buy it!

### ⭐⭐⭐⭐⭐ The Rolls-Royce of exhaust fans
*by R***T on December 8, 2023*

This is my third, and likely last, exhaust fan I've bought for a project. I wanted an exhaust system for our cat's litter box cabinet so that it would create a small amount of negative pressure and pull the bad odors outside. This fan is absolutely perfect in every possible way and has far exceeded my expectations. I arrived at this fan, after purchasing two others that were just too loud, as the noise seemed to bother the cat. I installed 2" PVC in the wall behind where the cabinet is, because I needed something small enough to fit. I then had a 90 degree elbow coming out of the wall, through a cover plate and then going into the back of the cabinet. In the attic, I installed a 2" to 4" duct adapter onto the 2" pipe, ran 25' of flex duct to this fan, and then another 16' run of duct to the roof vent. While the first two fans where very noisy, even at the lowest speeds, this one is virtually silent. I'm running it on level 2 and cannot hear anything inside the cabinet or in the house. Since I'm restricting the intake to only 2", anything above level 2 would likely just be a waste of power. This setup is working perfectly and creates more than enough exhaust to do the job and it does it in silence. The prior fans moved the air ok but had a really annoying hum that could be heard through the ductwork and also inside the house through the insulated ceiling. I hear nothing with this one. In addition to the above, the fan is rock solid and came with EVERYTHING one could possibly need to install it, including hose clamps. It's almost overkill but shows attention to detail. It also came with a very nice instruction book (yes, it's a substantial book) with detailed instructions on every aspect of installation and operation. The speed controller is very nice and easy to use. I just set it to my desired level and forget it. It will remember its current setting and resume after a power outage. This fan cost a bit more but is absolutely worth every penny paid. The difference in quality and quietness cannot be matched. I could not be happier, cat is happy, and we have an odor-free home.

### ⭐⭐⭐⭐⭐ Used it to Boost the Exhaust of a Falcon A1 Laser Engraver
*by M***C on February 1, 2026*

This review is for the 4" version of the AC Infinity CLOUDLINE PRO, also known as the S4. My son had received a Falcon A1 Laser Engraver from his wife for Christmas and I offered to create a custom exhaust setup for it. They have a young child and what I had read about the possible toxicity of laser engraving fumes (specifically for leather cutting and engraving) motivated me to get the fumes completely out of their house and garage. After a few hours of research, I zeroed in on this CLOUDLINE PRO S4 for the task, as well as some 4" flexible duct and a silicone elbow/reducer (4" to 3", also found on Amazon). I was not disappointed with the results! See my two photos. I'm very methodical and careful, so it took me a few hours to complete the system, but most of that time was spent sawing through the garage drywall and configuring the termination of the duct at the roof's soffit. My observations: The inline fan is fairly big, but lightweight and is very easy to secure to the wall with the included mounting bracket. It's very quiet! The ten-speed variable control will take it from too quiet to hear, up to a whisper, and finally to a slight swooshing sound at full speed. I was impressed with the air volume it moved. I could definitely feel the air coming from the outlet outside. It reminded me of the volume of air a clothes dryer would produce. Sure enough, with a rating of 205 cfm (likely measured without ductwork), this fan compares to the average clothes dryer exhaust of 150 - 200 cfm. A bonus for the setup I installed is that garages are very leaky and exhausting this much air will bring a similar amount of outside air as "makeup air" and will create a cooling effect for the garage when it's hotter inside than outside. Everything I read online indicated that AC Infinity made good quality inline fans and I got the same impression working with it. Even the packaging and "presentation" upon opening it was far nicer than I had expected. I would definitely buy this brand of inline fan again the next time I need this type of ventilation.

## Frequently Bought Together

- AC Infinity CLOUDLINE S8 PRO, Quiet 8” Inline Duct Fan with 10-Speed Controller, EC-Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics
- AC Infinity Flexible 8-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 8-Feet Long for Heating Cooling Ventilation and Exhaust
- AC Infinity Noise Reduction Clamp 8-Inch, Duct Coupler with Stainless Steel Clamps, Flexible Rubber Coupling for Inline Fans and Carbon Filters in Growing and HVAC

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.pt/products/96203675-ac-infinity-cloudline-s8-pro-quiet-8-inline-duct-fan](https://www.desertcart.pt/products/96203675-ac-infinity-cloudline-s8-pro-quiet-8-inline-duct-fan)

---

*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-05-09*