---
product_id: 320969630
title: "AC Infinity CLOUDLINE A6, Quiet 6” Inline Duct Fan with Speed Controller, EC Motor - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics"
brand: "ac infinity"
price: "€ 213.27"
currency: EUR
in_stock: true
reviews_count: 8
category: "Ac Infinity"
url: https://www.desertcart.it/products/320969630-ac-infinity-cloudline-a6-quiet-6-inline-duct-fan-speed
store_origin: IT
region: Italy
---

# EC motor - energy efficient 34 dBA noise - whisper quiet 352 CFM airflow - powerhouse breeze AC Infinity CLOUDLINE A6, Quiet 6” Inline Duct Fan with Speed Controller, EC Motor - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics

**Brand:** ac infinity
**Price:** € 213.27
**Availability:** ✅ In Stock

## Summary

> 🌿 Quiet power that keeps your space fresh and efficient — don’t get left in the heat!

## Quick Answers

- **What is this?** AC Infinity CLOUDLINE A6, Quiet 6” Inline Duct Fan with Speed Controller, EC Motor - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics by ac infinity
- **How much does it cost?** € 213.27 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/320969630-ac-infinity-cloudline-a6-quiet-6-inline-duct-fan-speed)

## 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

- • **Built to Last:** Dual ball bearings for reliable 24/7 continuous use
- • **Smart Compatible:** Works seamlessly with CLOUDLINE smart controllers for automation
- • **Silent Efficiency:** Mixed flow design with EC motor ensures ultra-quiet operation
- • **Versatile Ventilation:** Perfect for grow tents, AV closets, and odor control
- • **Precision Airflow Control:** 10-speed wired controller for tailored ventilation

## Overview

The AC Infinity CLOUDLINE A6 is a premium 6-inch inline duct fan delivering 352 CFM airflow at an ultra-quiet 34 dBA noise level. Featuring a highly efficient EC motor and mixed flow design, it offers energy-saving, whisper-quiet ventilation ideal for grow tents, hydroponics, AV closets, and odor control. Equipped with a wired 10-speed controller and compatibility with smart controllers, it ensures precise airflow management and reliable 24/7 operation with durable dual ball bearings.

## Description

desertcart.com: AC Infinity CLOUDLINE A6, Quiet 6” Inline Duct Fan with Speed Controller, EC Motor - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics : Patio, Lawn & Garden

Review: AC Infinity CLOUDLINE PRO S6 – Quiet and Powerful Cooling for My Miner Room - I purchased the AC Infinity CLOUDLINE PRO S6, 6” Inline Duct Fan with Speed Controller to help keep my miner room cool, and it has exceeded expectations. The EC motor is both powerful and efficient, and what surprised me most is just how quiet it runs, even at higher speeds. Installation was straightforward, and the included speed controller makes it easy to adjust airflow as needed. Running multiple miners can heat up a room quickly, but this fan has made a huge difference — it keeps temps under control without adding a lot of noise or power draw. The build quality feels premium, and I can tell it’s designed to run continuously without issues. ✅ Pros: Very quiet operation, even at high speeds Strong airflow to keep miner room temperatures down Speed controller included for precise adjustment Efficient EC motor saves power over time Solid build quality, designed for 24/7 use ❌ Cons: Higher upfront cost compared to budget inline fans Speed controller cable could be a little longer 💡 Tips: Use insulated ducting to further reduce noise. Mount the fan with vibration-dampening straps for an even quieter setup. Pair it with a temperature or humidity controller for automatic adjustments. Clean the fan and ducts periodically to maintain peak airflow. Bottom Line: The CLOUDLINE PRO S6 is a top-tier ventilation fan that’s perfect for high-demand environments like mining rooms, hydroponics, or grow tents. It’s quiet, efficient, and powerful — exactly what you need for reliable cooling in a 24/7 setup.
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 quietly ventilate grow tents, exhaust odors, transfer heating/cooling to rooms, and cool AV closets.
- Features the same build quality and innovations as the CLOUDLINE Series delivered in a value package.
- Includes a wired 10-speed fan controller; also compatible with all CLOUDLINE Series smart controllers.
- Mixed flow design combined with an EC-powered motor for a truly quiet and energy efficient performance.
- Duct Size: 6" | Dimensions: 7.9 x 12.6 x 8.4 in. | Airflow: 352 CFM | Noise: 34 dBA | Bearings: Dual Ball

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09456J5CC |
| Air Flow Capacity | 352 Cubic Feet Per Minute |
| Best Sellers Rank | #624 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #1 in Hydroponic Ventilation Equipment |
| Blade Length | 6 Inches |
| Brand | AC Infinity |
| Color | Speed Controller |
| Control Method | App |
| Customer Reviews | 4.7 4.7 out of 5 stars (29,224) |
| Date First Available | May 6, 2021 |
| Efficiency | Highly Efficient |
| Electric fan design | Exhaust Fan |
| Finish Type | Unfinished |
| Included Components | Cord, Remote |
| Indoor/Outdoor Usage | Indoor |
| Installation Type | wall-mounted |
| Is Cordless? | No |
| Item Weight | 5.39 pounds |
| Item model number | AI-CLA6 |
| Manufacturer | AC Infinity |
| Model Name | AI-CLA6 |
| Motor Type | EC |
| Noise Level | 34 Decibels |
| Number of Blades | 10 |
| Number of Power Levels | 10 |
| Power Source | Corded Electric |
| Product Dimensions | 6.9"D x 7.4"W x 11.9"H |
| Recommended Uses For Product | Cooling, Exhausting |
| Room Type | Bathroom |
| Size | 6-Inch |
| Special Feature | Mixed Flow Design, Wired 10-Speed Fan Controller, Compatible with CLOUDLINE Series Smart Controllers |
| Specification Met | CE, RoHS |
| Style | Modern |
| UPC | 819137021754 |
| Voltage | 240 Volts |
| Wattage | 35 watts |

## Product Details

- **Brand:** AC Infinity
- **Color:** Speed Controller
- **Electric fan design:** Exhaust Fan
- **Mounting Type:** Wall Mount
- **Power Source:** Corded Electric
- **Product Dimensions:** 6.9"D x 7.4"W x 11.9"H
- **Recommended Uses For Product:** Cooling, Exhausting
- **Room Type:** Bathroom
- **Special Feature:** Mixed Flow Design, Wired 10-Speed Fan Controller, Compatible with CLOUDLINE Series Smart Controllers
- **Style:** Modern

## Images

![AC Infinity CLOUDLINE A6, Quiet 6” Inline Duct Fan with Speed Controller, EC Motor - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics - Image 1](https://m.media-amazon.com/images/I/61zBgwoxcPS.jpg)

## Available Options

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

## Questions & Answers

**Q: What is the length of the speed control cord?**
A: 5ft
It look like an USB-C so maybe you can extend it.
When disconnecting the remote the fan goes full speed, then back to previous setting when you reconnect it.

**Q: How long is the adapter to use with the digital controller?**
A: approx. 10 to 15 ft long

**Q: One user stated that they wired directly to furnace blower, hence when blower comes on, it turn on, How? Any info please?**
A: This is my plan for this product. You could do this in two ways. Assuming your HVAC furnace blower is the same voltage, 120VAC in the US, you could wire directly off the feed inside the furnace that powers the blower. This will require understanding of electrical wiring and/or electrical schematic of the furnace. Although unlikely, this method may overload the blower protection circuit and probably voids the furnace warranty. Alternatively, you could use the house thermostat fan signal to control a 24 VAC relay, such as Functional Devices RIBU1C, to switch the 120 VAC powering the duct fan.

**Q: Any way to make it just go on full power instead of having to to push the button 5 times?**
A: Push the button 5 times. 
The controller is set up to program fan speed on start up but will maintain the memory on a power loss event. 
If you don’t want to push the button 5 times then just unplug it. Then you can plug it in one time🤔

## Customer Reviews

### ⭐⭐⭐⭐⭐ AC Infinity CLOUDLINE PRO S6 – Quiet and Powerful Cooling for My Miner Room
*by K***L on August 25, 2025*

I purchased the AC Infinity CLOUDLINE PRO S6, 6” Inline Duct Fan with Speed Controller to help keep my miner room cool, and it has exceeded expectations. The EC motor is both powerful and efficient, and what surprised me most is just how quiet it runs, even at higher speeds. Installation was straightforward, and the included speed controller makes it easy to adjust airflow as needed. Running multiple miners can heat up a room quickly, but this fan has made a huge difference — it keeps temps under control without adding a lot of noise or power draw. The build quality feels premium, and I can tell it’s designed to run continuously without issues. ✅ Pros: Very quiet operation, even at high speeds Strong airflow to keep miner room temperatures down Speed controller included for precise adjustment Efficient EC motor saves power over time Solid build quality, designed for 24/7 use ❌ Cons: Higher upfront cost compared to budget inline fans Speed controller cable could be a little longer 💡 Tips: Use insulated ducting to further reduce noise. Mount the fan with vibration-dampening straps for an even quieter setup. Pair it with a temperature or humidity controller for automatic adjustments. Clean the fan and ducts periodically to maintain peak airflow. Bottom Line: The CLOUDLINE PRO S6 is a top-tier ventilation fan that’s perfect for high-demand environments like mining rooms, hydroponics, or grow tents. It’s quiet, efficient, and powerful — exactly what you need for reliable cooling in a 24/7 setup.

### ⭐⭐⭐⭐⭐ 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 A6, Quiet 6” Inline Duct Fan with Speed Controller, EC Motor - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics
- AC Infinity Air Carbon Filter 6" with Premium Australian Virgin Charcoal, for Inline Duct Fan, Odor Control, Hydroponics, Grow Rooms

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-03-09*