---
product_id: 364604520
title: "AC Infinity CLOUDLINE A4, Quiet 4” Inline Duct Fan with Speed Controller, EC Motor - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics"
brand: "ac infinity"
price: "830.82 DT"
currency: TND
in_stock: true
reviews_count: 13
category: "Ac Infinity"
url: https://www.desertcart.tn/products/364604520-ac-infinity-cloudline-a4-quiet-4-inline-duct-fan-speed
store_origin: TN
region: Tunisia
---

# 29 dBA whisper-quiet 10-speed EC motor control 165 CFM airflow AC Infinity CLOUDLINE A4, Quiet 4” Inline Duct Fan with Speed Controller, EC Motor - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics

**Brand:** ac infinity
**Price:** 830.82 DT
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** AC Infinity CLOUDLINE A4, Quiet 4” 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?** 830.82 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/364604520-ac-infinity-cloudline-a4-quiet-4-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

- • **Smart Compatibility:** Seamlessly integrates with AC Infinity’s smart controllers for automated climate control and peace of mind.
- • **Whisper-Quiet Power:** Experience near-silent airflow with just 29 dBA noise—perfect for focused work or stealthy grow rooms.
- • **Energy-Efficient EC Motor:** Cut energy costs with a cutting-edge electronically commutated motor designed for long-lasting, eco-friendly performance.
- • **Precision Airflow Control:** 10-speed wired controller lets you dial in the exact ventilation boost your space demands.
- • **Versatile Ventilation Solution:** Ideal for grow tents, AV closets, HVAC systems, and hydroponics—adapt your environment with ease.

## Overview

The AC Infinity CLOUDLINE A4 is a 4-inch inline duct fan delivering 165 CFM airflow at an ultra-quiet 29 dBA noise level. Featuring a 10-speed EC motor with wired controller, it offers precise, energy-efficient ventilation ideal for grow tents, HVAC, and AV cooling. Built with durable materials and smart home compatibility, it’s engineered for professional-grade environmental control.

## 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: Moves some air! - The AC Infinity CLOUDLINE A4 Quiet 4” Inline Duct Fan has set a new standard of excellence in the realm of ventilation technology. From its whisper-quiet operation to its unmatched performance, this fan stands head and shoulders above its competitors. What truly sets the CLOUDLINE A4 apart is its advanced design and innovative features. First and foremost, the whisper-quiet operation of this fan is nothing short of remarkable. Even at full speed, it produces minimal noise, making it ideal for environments where noise pollution is a concern. This feature alone sets it apart from other inline fans on the market. In addition to its quiet operation, the CLOUDLINE A4 delivers exceptional airflow performance. The precision-engineered fan blades and powerful motor work in perfect harmony to move air efficiently and effectively. Whether you're ventilating a grow tent, cooling a server rack, or maintaining optimal airflow in a HVAC system, this fan gets the job done with ease. The built-in smart controller adds another layer of convenience and functionality to the CLOUDLINE A4. With the ability to adjust fan speed, set timers, and monitor temperature and humidity levels, it offers unparalleled control over your ventilation system. The user-friendly interface makes it easy to customize settings and fine-tune performance to meet your specific needs. Durability is another area where the CLOUDLINE A4 shines. Constructed from high-quality materials and built to withstand the rigors of continuous use, this fan is built to last. Whether you're a professional HVAC technician or a DIY enthusiast, you can trust that the CLOUDLINE A4 will provide reliable performance for years to come. Overall, the AC Infinity CLOUDLINE A4 Quiet 4” Inline Duct Fan is in a class of its own. Its combination of whisper-quiet operation, exceptional airflow performance, advanced features, and durability make it the clear choice for anyone in need of a superior inline duct fan. Simply put, it's the best of the best.
Review: Deceptive marketing but still love the fan. - Edit: I like this fan way to much to leave the one star review in place. I still stand by my original reasoning but can't help liking and even emphatically recommending this fan based on how well it works and the overall look and feel of the build quality. At the second of 10 speeds the sound from the fan itself is hard to discern although there is a very noticeable woosh from the air itself flowing through the opening of the tube on my desk. Even at this low speed it seems to provide enough ventilation for me. Original review (1 star): Ignore the noise ratings and probably any claims really. It's a fan. It sounds like a fan and moves air like a fan. The whisper soft 29dba or w/e it is supposedly rated for is more like 70+ in reality. Based on how grossly that was misrepresented I can only imagine the airflow and power ratings are likewise no where near reality. That all being said, I really like the fan I received. It's not what was advertised but I pretty much expected that going in so... The noise is pretty loud at mid to high settings but is mostly a loud but soft woosh sound and with the hose attached I doubt it would bother most people. I plan to use it for venting solder fumes and it will likely be plenty powerful at it's lowest settings which is actually almost silent to it's credit, although customer service on their website flatly stated the unit was tested for sound at max speed with hoses off. Can't give it 5 stars because the fan does not live up to the promises in the listing, but it's a pretty good fan none the less, just know what you are getting into. If you need to rely on the specific performance data for any reason I would suggest buying something legit, otherwise if you just need a fan this one's pretty decent.

## 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09FYK6Z3R |
| Air Flow Capacity | 165 Cubic Feet Per Minute |
| Best Sellers Rank | #2,425 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #1 in Hydroponic Ventilation Equipment |
| Blade Length | 7.4 Inches |
| Blade Material | Plastic |
| Brand | AC Infinity |
| Brand Name | AC Infinity |
| Cable Length | 6 Feet |
| Collection Name | Inline Duct Fans |
| Color | Speed Controller for A4 |
| Control Method | App |
| 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 | Matte |
| Included Components | Cord, Remote |
| Indoor Outdoor Usage | Indoor |
| Installation Type | Mounted |
| Is Product Cordless | No |
| Item Dimensions D x W x H | 6.9"D x 11.9"W x 7.4"H |
| Manufacturer | AC Infinity Inc. |
| Material | Plastic |
| Model Name | CLOUDLINE LITE A4 |
| Model Number | CLOUDLINE LITE A4 |
| 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 | AC |
| Product Dimensions | 6.9"D x 11.9"W x 7.4"H |
| Recommended Uses For Product | Inline Duct Fan |
| Room Type | Indoor |
| Size | 4-Inch |
| Smart Home Compatibility | Smart Home Compatible |
| Special Features | Programmable |
| Specification Met | CE, RoHS |
| Speed | 2800 RPM |
| Standby Power Shutoff | High Efficiency |
| Style | Cloudline A4 |
| UPC | 819137021747 |
| Unit Count | 1.0 Count |
| Voltage | 120 Volts |
| Wattage | 7.2 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, Kitchen
- **Special Feature:** Bladeless
- **Style:** Modern

## Images

![AC Infinity CLOUDLINE A4, Quiet 4” 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/51O8XVVM5tL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Moves some air!
*by M***. on February 4, 2024*

The AC Infinity CLOUDLINE A4 Quiet 4” Inline Duct Fan has set a new standard of excellence in the realm of ventilation technology. From its whisper-quiet operation to its unmatched performance, this fan stands head and shoulders above its competitors. What truly sets the CLOUDLINE A4 apart is its advanced design and innovative features. First and foremost, the whisper-quiet operation of this fan is nothing short of remarkable. Even at full speed, it produces minimal noise, making it ideal for environments where noise pollution is a concern. This feature alone sets it apart from other inline fans on the market. In addition to its quiet operation, the CLOUDLINE A4 delivers exceptional airflow performance. The precision-engineered fan blades and powerful motor work in perfect harmony to move air efficiently and effectively. Whether you're ventilating a grow tent, cooling a server rack, or maintaining optimal airflow in a HVAC system, this fan gets the job done with ease. The built-in smart controller adds another layer of convenience and functionality to the CLOUDLINE A4. With the ability to adjust fan speed, set timers, and monitor temperature and humidity levels, it offers unparalleled control over your ventilation system. The user-friendly interface makes it easy to customize settings and fine-tune performance to meet your specific needs. Durability is another area where the CLOUDLINE A4 shines. Constructed from high-quality materials and built to withstand the rigors of continuous use, this fan is built to last. Whether you're a professional HVAC technician or a DIY enthusiast, you can trust that the CLOUDLINE A4 will provide reliable performance for years to come. Overall, the AC Infinity CLOUDLINE A4 Quiet 4” Inline Duct Fan is in a class of its own. Its combination of whisper-quiet operation, exceptional airflow performance, advanced features, and durability make it the clear choice for anyone in need of a superior inline duct fan. Simply put, it's the best of the best.

### ⭐⭐⭐⭐⭐ Deceptive marketing but still love the fan.
*by P***E on August 3, 2023*

Edit: I like this fan way to much to leave the one star review in place. I still stand by my original reasoning but can't help liking and even emphatically recommending this fan based on how well it works and the overall look and feel of the build quality. At the second of 10 speeds the sound from the fan itself is hard to discern although there is a very noticeable woosh from the air itself flowing through the opening of the tube on my desk. Even at this low speed it seems to provide enough ventilation for me. Original review (1 star): Ignore the noise ratings and probably any claims really. It's a fan. It sounds like a fan and moves air like a fan. The whisper soft 29dba or w/e it is supposedly rated for is more like 70+ in reality. Based on how grossly that was misrepresented I can only imagine the airflow and power ratings are likewise no where near reality. That all being said, I really like the fan I received. It's not what was advertised but I pretty much expected that going in so... The noise is pretty loud at mid to high settings but is mostly a loud but soft woosh sound and with the hose attached I doubt it would bother most people. I plan to use it for venting solder fumes and it will likely be plenty powerful at it's lowest settings which is actually almost silent to it's credit, although customer service on their website flatly stated the unit was tested for sound at max speed with hoses off. Can't give it 5 stars because the fan does not live up to the promises in the listing, but it's a pretty good fan none the less, just know what you are getting into. If you need to rely on the specific performance data for any reason I would suggest buying something legit, otherwise if you just need a fan this one's pretty decent.

### ⭐⭐⭐⭐⭐ Quiet ventilation for 3D printer
*by E***O on November 27, 2025*

This inline fan is sturdy and very quiet! I am using it to ventilate a 3d printing space and it mounted easily to the bottom of a table and moves a very high volume of air, keeping the room free of particulates. The included remote allows you to set the fan speed with a lot of granularity. Maybe the only drawback is that the fan remote requires a cable connection and that cable is short.

## 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

---

## 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.tn/products/364604520-ac-infinity-cloudline-a4-quiet-4-inline-duct-fan-speed](https://www.desertcart.tn/products/364604520-ac-infinity-cloudline-a4-quiet-4-inline-duct-fan-speed)

---

*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-06-22*