---
product_id: 422269312
title: "CLOUDLINE A4, Quiet 100mm Inline Duct Fan"
brand: "ac infinity"
price: "€ 246.15"
currency: EUR
in_stock: true
reviews_count: 7
category: "Ac Infinity"
url: https://www.desertcart.fi/products/422269312-cloudline-a4-quiet-100mm-inline-duct-fan
store_origin: FI
region: Finland
---

# 165 CFM airflow 29 dBA ultra-quiet 10-speed EC motor CLOUDLINE A4, Quiet 100mm Inline Duct Fan

**Brand:** ac infinity
**Price:** € 246.15
**Availability:** ✅ In Stock

## Summary

> 💨 Elevate your air game with silent, smart airflow mastery!

## Quick Answers

- **What is this?** CLOUDLINE A4, Quiet 100mm Inline Duct Fan by ac infinity
- **How much does it cost?** € 246.15 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/422269312-cloudline-a4-quiet-100mm-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

- • **Durable & Dustproof:** IP-44 rating protects against dust and moisture, built to last in tough conditions.
- • **Whisper-Quiet Power:** Operate at a barely-there 29 dBA for distraction-free ventilation.
- • **Energy-Smart EC Motor:** EC-powered motor delivers high efficiency with low power consumption (7.2W).
- • **Smart Automation Ready:** Compatible with AC Infinity smart controllers for climate-triggered, app-based environmental control.
- • **Precision Airflow Control:** 10-speed wired controller lets you dial in perfect airflow for any environment.

## Overview

The AC Infinity CLOUDLINE A4 is a 4-inch inline duct fan engineered for quiet, energy-efficient ventilation with a powerful 165 CFM airflow. Featuring a 10-speed EC motor, IP-44 dust and moisture resistance, and compatibility with smart controllers, it’s ideal for grow tents, hydroponics, AV closets, and HVAC boosting. Its whisper-quiet 29 dBA noise level and durable build make it a top choice for professionals seeking precise environmental control and long-lasting performance.

## Description

Product Description Intelligent Precision Ventilation Reimagined for those on a budget but want the quintessential CLOUDLINE experience. Engineered with quiet and energy-efficient performance that rivals that of the CLOUDLINE PRO but in a value package. Durable Build IP-44 rated to block dust and liquid for long-lasting use while withstanding extreme temperatures. Durable Build IP-44 rated to block dust and liquid for long-lasting use while withstanding extreme temperatures. Secure Placement Included mounting hardware and hanging straps provide multiple safe and stable installation options. Secure Placement Included mounting hardware and hanging straps provide multiple safe and stable installation options. Easy to Clean Removable motor box makes maintenance easy, enabling you to completely dust or wipe down stator blades. Easy to Clean Removable motor box makes maintenance easy, enabling you to completely dust or wipe down stator blades. Omnidirectional Mounting Dual ball bearings allow for mounting in any direction and feature an estimated 67,000 hour lifespan. Omnidirectional Mounting Dual ball bearings allow for mounting in any direction and feature an estimated 67,000 hour lifespan. Easy Environmental Automation Innovative Ventilation Connect this duct fan to CONTROLLER 69 or later (sold separately) and download the AC Infinity app to access custom activation using climate triggers, grow cycles, scheduling, and automation programming. Advance Programming Create automation for your devices to systematically manage your grow tent environment. Set customizable alerts that can trigger to almost any event. Greater Environmental Insight Interactive graph intuitively displays temperature, humidity, and VPD data. Input target figures to help your grow tent approach and maintain your ideal environment. Active Monitoring Stay on top of what's happening in your grow space using alerts and notifications so you can quickly counteract any environmental spikes. CLOUDFORGE Series Link with Environmental Humidifiers to apply climate triggers, cycling, scheduling, and alerts. CLOUDFORGE Series Link with Environmental Humidifiers to apply climate triggers, cycling, scheduling, and alerts. UIS Lighting Adapters Control other brands' grow lights that use RJ11 or RJ12 connection ports. UIS Lighting Adapters Control other brands' grow lights that use RJ11 or RJ12 connection ports. IONBOARD Series Pair with LED Grow Light Boards to apply grow cycles and scheduling. IONBOARD Series Pair with LED Grow Light Boards to apply grow cycles and scheduling. UIS Control Plug Control outlet-powered devices such as heaters, lights, dehumidifiers, and air conditioners. UIS Control Plug Control outlet-powered devices such as heaters, lights, dehumidifiers, and air conditioners. CLOUDLINE Series Connect to Inline Duct Fans to apply cycling, scheduling, and dynamic environmental triggers with transitions. CLOUDLINE Series Connect to Inline Duct Fans to apply cycling, scheduling, and dynamic environmental triggers with transitions. CLOUDRAY Series Use with Circulation Clip-on Fans to apply grow cycles, scheduling, and dynamic environmental triggers with transitions. CLOUDRAY Series Use with Circulation Clip-on Fans to apply grow cycles, scheduling, and dynamic environmental triggers with transitions.

Review: excellent in-line fan - all just started using it, but this looks an excellent piece of kit and gives good extraction from my airbrush booth despite resistance from filter and two right angle bends in extraction tube
Review: Excellent - Excellent bit of kit

## 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 |
| Air Flow Capacity | 165 Cubic Feet Per Minute |
| Best Sellers Rank | 35,584 in DIY & Tools ( See Top 100 in DIY & Tools ) 16 in Household Ventilation Fans |
| Blade Length | 7.4 Inches |
| Blade Material | Plastic |
| Brand | AC Infinity |
| Brand Name | AC Infinity |
| Cable Length | 6 Feet |
| Collection Name | Inline Fan |
| Colour | Speed Controller for A4 |
| Connector Type | Canadian electrical plug |
| Control Method | Remote |
| Controller Type | Button Control |
| Customer Reviews | 4.6 out of 5 stars 474 Reviews |
| Electric Fan Design | Exhaust Fan |
| Electric fan design | Exhaust Fan |
| Finish Type | Painted |
| Form Factor | Inline |
| Included Components | Cord |
| Indoor Outdoor Usage | Indoor |
| Installation Type | Mounted |
| Is Product Cordless | No |
| Item Dimensions D x W x H | 17.5D x 18.8W x 30.2H centimetres |
| Main Power Connector Type | Standard Electrical Plug |
| Manufacturer | AC Infinity |
| Material | Polypropylene |
| Model Name | CLOUDLINE LITE A4 |
| Model Number | AI-CLA4 |
| Motor Type | EC |
| Mounting Type | Downrod Mount |
| Noise Level | 29 Decibels |
| Number of Blades | 10 |
| Number of Power Levels | 10 |
| Number of Speeds | 10 |
| Part Number | AI-CLA4 |
| Power Source | Corded Electric |
| Power source | Corded Electric |
| Product dimensions | 17.5D x 18.8W x 30.2H centimetres |
| Recommended Uses For Product | Air Circulation, Cooling, Exhausting |
| Reusability | Rechargeable |
| Room Type | Kitchen |
| Size | 4 inch |
| Smart Home Compatibility | Smart Home Compatible |
| Special Features | Lightweight |
| Specification Met | CE |
| Speed | 2800 RPM |
| Standby Power Shutoff | High Efficiency |
| Style | Industrial |
| Switch Type | Wired multi-speed switch |
| Theme | ventilation |
| UPC | 819137021747 |
| Unit Count | 1.0 count |
| Voltage | 120 Volts |
| Wattage | 7.2 watts |

## 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

![CLOUDLINE A4, Quiet 100mm Inline Duct Fan - Image 1](https://m.media-amazon.com/images/I/61s4GXaboML.jpg)
![CLOUDLINE A4, Quiet 100mm Inline Duct Fan - Image 2](https://m.media-amazon.com/images/I/71Urj8OcJfL.jpg)
![CLOUDLINE A4, Quiet 100mm Inline Duct Fan - Image 3](https://m.media-amazon.com/images/I/61HDJcaAVLL.jpg)
![CLOUDLINE A4, Quiet 100mm Inline Duct Fan - Image 4](https://m.media-amazon.com/images/I/61TtkYtvoGL.jpg)
![CLOUDLINE A4, Quiet 100mm Inline Duct Fan - Image 5](https://m.media-amazon.com/images/I/71mdKRfbTCL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ excellent in-line fan
*by A***T on 29 June 2026*

all just started using it, but this looks an excellent piece of kit and gives good extraction from my airbrush booth despite resistance from filter and two right angle bends in extraction tube

### ⭐⭐⭐⭐⭐ Excellent
*by M***S on 20 May 2026*

Excellent bit of kit

### ⭐⭐⭐⭐⭐ Near silent and powerful
*by J***S on 5 June 2026*

This fan is epic! Got it for a ventilation system for my 3D printers. And I had prior to this a smaller fan. But I didn’t like the hum of the PWM controller. So this fan with the 10 step speed controller makes it silent. The only noise you hear is from the wind it makes on higher speeds. I run it on #3 which would have to be like 7 on the old fan. I’m very pleased. Thanks for a great fan! Oh also the power cord and the remote cord is nice and long. I’m super thrilled!

## 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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**Shop now:** [https://www.desertcart.fi/products/422269312-cloudline-a4-quiet-100mm-inline-duct-fan](https://www.desertcart.fi/products/422269312-cloudline-a4-quiet-100mm-inline-duct-fan)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-08-09*