---
product_id: 422269312
title: "AC Infinity CLOUDLINE A4, Quiet 100mm Inline Duct Fan with Speed Controller, EC Motor - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics, 4-Inch"
brand: "ac infinity"
price: "C$19214"
currency: NIO
in_stock: true
reviews_count: 13
category: "Ac Infinity"
url: https://www.desertcart.ni/products/422269312-ac-infinity-cloudline-a4-quiet-100mm-inline-duct-fan-speed
store_origin: NI
region: Nicaragua
---

# 7.2W energy-efficient EC motor 29 dBA ultra-quiet 165 CFM airflow AC Infinity CLOUDLINE A4, Quiet 100mm Inline Duct Fan with Speed Controller, EC Motor - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics, 4-Inch

**Brand:** ac infinity
**Price:** C$19214
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your air game—quiet, smart, and efficient ventilation that keeps you ahead of the curve.

## Quick Answers

- **What is this?** AC Infinity CLOUDLINE A4, Quiet 100mm Inline Duct Fan with Speed Controller, EC Motor - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics, 4-Inch by ac infinity
- **How much does it cost?** C$19214 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/422269312-ac-infinity-cloudline-a4-quiet-100mm-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

- • **Whisper-Quiet Power:** Operates at a barely audible 29 dBA, perfect for focused work or relaxation without distraction.
- • **Plug & Play UK Ready:** Equipped with Type-G plug and compatible with UK voltage standards for seamless setup and use.
- • **Energy-Smart EC Motor:** Consumes just 7.2 watts while delivering robust 165 CFM airflow, saving energy without sacrificing performance.
- • **Precision Airflow Control:** 10-speed wired controller plus smart app compatibility lets you tailor ventilation exactly to your environment.
- • **Versatile Ventilation Solution:** Ideal for grow tents, hydroponics, AV closets, and HVAC boosting—adaptable to your unique space needs.

## Overview

The AC Infinity CLOUDLINE A4 is a compact, 4-inch inline duct fan engineered for whisper-quiet operation and energy efficiency. Featuring a powerful EC motor delivering 165 CFM airflow at just 29 dBA noise, it includes a 10-speed wired controller and smart app compatibility for precise environmental control. Designed for grow tents, hydroponics, and HVAC applications, it comes UK-ready with a Type-G plug and supports advanced automation, making it the go-to ventilation solution for professionals seeking performance and discretion.

## Description

Free delivery and returns on eligible orders. Buy AC Infinity CLOUDLINE A4, Quiet 100mm Inline Duct Fan with Speed Controller, EC Motor - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics, 4-Inch at desertcart UK.

Review: Silent - This a super quite fan.The controller has a bluetooth smart phone App which works faultlessly.There is also a long power cord. The controller can power two fans simultaneously. Bought a cheaper fan first which was noisy & returned. The fan works best with hard plastic ducting as this carries virtually no sound compared to flexible ducting. On full speed the fan is barely audible.The only sound coming from the two intakes I have drawing air.I have the fan exhausting through an external wall duct which also reduces noise. Excellent fan, highly recommended.
Review: Amazing inline fan and works great - loads of features - Amazing product, and it arrives with the new Controller AI, not the one displayed in the picture, so just a heads up. It's the newer and better model and provides lots of amazing functionality, and also looks better. The fan is great at extracting air and keeping humidity low in my basement, and I love that I can check the stats on my phone and see how it has been performing. Also, being able to control it from anywhere in the world is very useful as long as you connect the controller to WiFi. Noise can be a bit loud on max airspeed, but that's expected. Anything below 7-8 is very workable. I'm setting it up as a dual system with a blast gate and splitter for humidity control, and also as an electronics fume extraction system, which is great for that purpose. Controller sticks onto magnetic surfaces so I did not need to mount it and put it on my metal garage shelving and placed the fan unit on the top shelf. It comes with very high-quality cables, and the packaging is also very well thought out; each thing is easy to find. There is endless functionality on the app, and you can customise and automate it through a variety of sensors and cases such as RH, temp, etc. Highly recommend it for anyone who wants a good quality and well-made inline fan that has all the features.

## 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: 4" | Dimensions: 6.9 x 11.9 x 7.4 in. | Airflow: 165 CFM | Noise: 29 dBA | Bearings: Dual Ball
- This product is equipped with a Type-G power plug and is compatible with the voltage commonly used in the United Kingdom.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09FYK6Z3R |
| Best Sellers Rank | 9,745 in Garden ( See Top 100 in Garden ) 8 in Hydroponic Ventilation Equipment |
| Brand | AC Infinity |
| Colour | Black |
| Customer Reviews | 4.4 4.4 out of 5 stars (16,228) |
| Date First Available | 6 May 2021 |
| Item Weight | 2.2 kg |
| Model Number | AI-CLA4 |
| Noise Level | 29 Decibels |
| Power / Wattage | 7.2 watts |
| Product Dimensions | 18.8 x 17.53 x 30.23 cm; 2.2 kg |
| Special Features | Lightweight |
| Voltage | 120 Volts |

## Product Details

- **Brand:** AC Infinity
- **Colour:** Black
- **Electric fan design:** Exhaust Fan
- **Mounting type:** Wall Mount
- **Power source:** Corded Electric
- **Product dimensions:** 17.5D x 18.8W x 30.2H centimetres
- **Recommended uses for product:** Air Circulation, Cooling, Exhausting
- **Room type:** Kitchen
- **Special feature:** Lightweight
- **Style:** Industrial

## Images

![AC Infinity CLOUDLINE A4, Quiet 100mm Inline Duct Fan with Speed Controller, EC Motor - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics, 4-Inch - Image 1](https://m.media-amazon.com/images/I/61s4GXaboML.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Silent
*by A***. on 24 December 2025*

This a super quite fan.The controller has a bluetooth smart phone App which works faultlessly.There is also a long power cord. The controller can power two fans simultaneously. Bought a cheaper fan first which was noisy & returned. The fan works best with hard plastic ducting as this carries virtually no sound compared to flexible ducting. On full speed the fan is barely audible.The only sound coming from the two intakes I have drawing air.I have the fan exhausting through an external wall duct which also reduces noise. Excellent fan, highly recommended.

### ⭐⭐⭐⭐⭐ Amazing inline fan and works great - loads of features
*by U***B on 17 September 2025*

Amazing product, and it arrives with the new Controller AI, not the one displayed in the picture, so just a heads up. It's the newer and better model and provides lots of amazing functionality, and also looks better. The fan is great at extracting air and keeping humidity low in my basement, and I love that I can check the stats on my phone and see how it has been performing. Also, being able to control it from anywhere in the world is very useful as long as you connect the controller to WiFi. Noise can be a bit loud on max airspeed, but that's expected. Anything below 7-8 is very workable. I'm setting it up as a dual system with a blast gate and splitter for humidity control, and also as an electronics fume extraction system, which is great for that purpose. Controller sticks onto magnetic surfaces so I did not need to mount it and put it on my metal garage shelving and placed the fan unit on the top shelf. It comes with very high-quality cables, and the packaging is also very well thought out; each thing is easy to find. There is endless functionality on the app, and you can customise and automate it through a variety of sensors and cases such as RH, temp, etc. Highly recommend it for anyone who wants a good quality and well-made inline fan that has all the features.

### ⭐⭐⭐⭐⭐ Air filter and fan
*by D***N on 15 July 2025*

Ac infinity have the best products and this is no exception.... very quiet and efficient

## Frequently Bought Together

- AC Infinity CLOUDLINE A4, Quiet 4” Inline Duct Fan with Speed Controller, EC Motor - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics
- AC Infinity Flexible 4-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 8-Feet Long for Heating Cooling Ventilation and Exhaust
- AC Infinity Flexible 4-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 Nicaragua*
*Store origin: NI*
*Last updated: 2026-01-23*