---
product_id: 181191678
title: "RAXIAL S8, Inline Booster Duct Fan 200mm with Speed Controller"
brand: "ac infinity"
price: "€ 151.24"
currency: EUR
in_stock: true
reviews_count: 13
category: "Ac Infinity"
url: https://www.desertcart.gr/products/181191678-raxial-s8-inline-booster-duct-fan-200mm-with-speed-controller
store_origin: GR
region: Greece
---

# 428 CFM airflow 43 dBA ultra-quiet 3-speed variable control RAXIAL S8, Inline Booster Duct Fan 200mm with Speed Controller

**Brand:** ac infinity
**Price:** € 151.24
**Availability:** ✅ In Stock

## Summary

> 💨 Quiet power, tailored airflow — breathe smarter, live better.

## Quick Answers

- **What is this?** RAXIAL S8, Inline Booster Duct Fan 200mm with Speed Controller by ac infinity
- **How much does it cost?** € 151.24 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/181191678-raxial-s8-inline-booster-duct-fan-200mm-with-speed-controller)

## 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 Unibody Design:** Crafted from die-cast alloy steel with no welded seams, ensuring vibration-free, long-lasting reliability.
- • **Powerful Airflow Boost:** Elevate your indoor air quality with a robust 428 CFM capacity that keeps your spaces fresh and ventilated.
- • **Precision Speed Control:** Customize airflow effortlessly with a smooth 3-speed dial, balancing power and noise to fit your environment.
- • **Whisper-Quiet Operation:** At just 43 dBA, enjoy near-silent performance that won’t disrupt your focus or relaxation.
- • **Versatile Indoor Ventilation:** Perfect for basements, workshops, bathrooms, and kitchens—upgrade your HVAC system with professional-grade airflow.

## Overview

The AC Infinity RAXIAL S8 is an 8-inch inline booster duct fan designed to enhance HVAC airflow with a powerful 428 CFM capacity. Featuring a variable 3-speed controller and ultra-quiet 43 dBA operation, its durable die-cast alloy steel unibody construction minimizes vibration for smooth, reliable performance. Ideal for indoor spaces like basements, kitchens, and workshops, it offers professional-grade ventilation with customizable airflow to suit any environment.

## Description

AC Infinity RAXIAL S8, Inline Booster Duct Fan 8” with Speed Controller | Low Noise Inline HVAC Blower Can Fan for Basements, Bathrooms, Kitchens, Workshops - desertcart.com

Review: Nice fan, quiet depending on how you install it. - Have this hooked up to the far end vent for a Bambu P2S printer to exhaust toxic fumes. Yes the instructions say don't use this for toxic fumes but I figured if thousands of others have been using this for their printers over the years it must be ok. There aren't a ton of toxic fumes, and they're not flammable fumes either. I would not use this for flammable fumes. It moves a decent amount of air once it gets to the midway power setting. On max it move a little more but this doesn't need to be hair-dryer speed to do it's intended job. Yes it's a little noisy if you don't have any vent tubes hooked up to it. I have it midway on power and connected to a flexible 4" dryer duct on one side and a tin dryer duct on the other. I can hear it from 5 feet away but barely. If you've ever been next to a RADON fan it kind of sounds like that...super muffled. It's right below our master closet and if I stand in the closet and purposefully listen, with no other noises going on, I can barely hear it but I know what I'm listening for. The spousal unit has not noticed at all, and she's in there a lot. I think that's her safe space, not that she needs one mind you. But with the clothes everywhere it helps to shut out distractions and noise and I see how it can be calming to hang out in there. Back to the topic--Once you turn it on it seems to start at 100% power, then quickly lowers power to wherever you have it set. Nothing wrong with that, just wanted to point it out. I have it plugged into a smart receptacle, so I can turn it on from afar. Should come in handy if I forget to turn it on and start a print and leave the house. Can also monitor energy usage, but I don't think it draws much. The housing is exactly 4" diameter, the exact same as most hard/tin 4" ducts. This is a little annoying. I have it connected directly to an outdoor dryer vent, and the tube that came with that vent is the exact same size as the housing, so I had to buy a short super thin adapter and clamp the vent to the adapter, then the fan to the adapter. I did get a 4" flexible dryer duct attached to the other side, little challenging but it fit. I only use about 4ft of the flexible duct, then it goes to hard duct and runs across the room to the printer.
Review: Worth the cost. - Works well for price point, not had any issues with it, dial for speed control functions well.

## Features

- A duct fan designed to increase existing airflow in HVAC systems and ventilate home spaces like attics and workshops.
- Features a variable fan speed controller, enabling you to optimize airflow and noise level for any application.
- Unibody die-cast construction with no welded seams; reduces vibration while ensuring smoother airflow.
- AC brushless motor with steel blades and lubricated bearings; not suitable in restricted airflow applications.
- Duct size: 8” | Dimensions: 7.28 x 7.87 x 7.87 in. | Airflow: 428 CFM | Noise: 43 dBA | Bearings: Dual Ball

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07ZPF4NRX |
| Air Flow Capacity | 428 cfm |
| Best Sellers Rank | #18,324 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #62 in Household Ventilation Fans |
| Blade Length | 8 inches |
| Blade Material | Plastic |
| Brand | AC Infinity |
| Brand Name | AC Infinity |
| Collection Name | Hvac Fans |
| Color | Black |
| Control Method | App |
| Controller Type | Button Control |
| Customer Reviews | 4.4 out of 5 stars 8,404 Reviews |
| Electric Fan Design | Blower |
| Electric fan design | Blower |
| Finish Type | Matte |
| Global Trade Identification Number | 00819137021129 |
| Included Components | Cord |
| Indoor Outdoor Usage | Indoor |
| Installation Type | Inline |
| Item Dimensions D x W x H | 7.28"D x 7.95"W x 7.95"H |
| Main Power Connector Type | Standard Wall Outlet Plug |
| Manufacturer | AC Infinity |
| Material | Alloy Steel |
| Model Name | RAXIAL S8 |
| Model Number | AC-RXS8 |
| Mounting Type | Wall Mount |
| Noise Level | 43 db |
| Number of Blades | 5 |
| Number of Power Levels | 3 |
| Number of Speeds | 3 |
| Part Number | AC-RXS4 |
| Power Source | AC |
| Product Dimensions | 7.28"D x 7.95"W x 7.95"H |
| Recommended Uses For Product | Indoor |
| Room Type | Basements, Bathrooms, Kitchens, Workshops |
| Size | 8" |
| Special Features | Speed Controller |
| Standby Power Shutoff | High |
| Style | Duct Fan |
| Switch Type | Push Button |
| UPC | 819137021129 |
| Unit Count | 1 Count |
| Voltage | 120 volts |
| Wattage | 46 watts |

## Product Details

- **Brand:** AC Infinity
- **Color:** Black
- **Electric fan design:** Blower
- **Mounting Type:** Wall Mount
- **Power Source:** AC
- **Product Dimensions:** 7.28"D x 7.95"W x 7.95"H
- **Recommended Uses For Product:** Indoor
- **Room Type:** Basements, Bathrooms, Kitchens, Workshops
- **Special Feature:** Speed Controller
- **Style:** Duct Fan

## Images

![RAXIAL S8, Inline Booster Duct Fan 200mm with Speed Controller - Image 1](https://m.media-amazon.com/images/I/51O6WZ-NM6L.jpg)
![RAXIAL S8, Inline Booster Duct Fan 200mm with Speed Controller - Image 2](https://m.media-amazon.com/images/I/61tGOCC1LCL.jpg)
![RAXIAL S8, Inline Booster Duct Fan 200mm with Speed Controller - Image 3](https://m.media-amazon.com/images/I/510kA0VyU+L.jpg)
![RAXIAL S8, Inline Booster Duct Fan 200mm with Speed Controller - Image 4](https://m.media-amazon.com/images/I/618mwsl+foL.jpg)
![RAXIAL S8, Inline Booster Duct Fan 200mm with Speed Controller - Image 5](https://m.media-amazon.com/images/I/61HW0iFm9WL.jpg)

## Available Options

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

## Questions & Answers

**Q: Can you add a carbon filter**
A: I'm using it with a 4" carbon filter in my veg/mid  flower 2x4 tent. Airflow is pretty reasonable coming out of the end and the air is scrubbed good with a clean fresh smell. I'm here because I'm buying a second one to use as an intake fan to complete the setup. I'm only running 1 95 watt light in this tent so I don't need extreme airflow. In my 3x3 flowering tent however, I  am running the ac infinity cloudine 4" fan with the ac infinity 4" carbon filter. More lights and more smell equals more airflow needed.
These are a little bit on the louder side compared to the cloudine so if that doesn't bother you then you'll be ok. You'll need those running at full speed with the carbon filter. I run my cloudine at half speed. 
If you're looking to save some money then it will do the job but the cloudine is the one to get otherwise. 
I'll probably get another cloudine in the future for my veg tent but for now this will be ok.

**Q: Will this plug into T8 digital temp and humidity control?**
A: I use it in my tent to exhaust air out and have it in a timer, but you can def plug it into an environmental controller.

**Q: I need to run at approximately 190 to 200 cfm. Would it be quieter to run a 6 inch at high speed, or an 8 inch at low speed to achieve this flow?**
A: Go with the 8 inch which will move more air at lower speeds. Higher speed it becomes a small wind tunnel and is loud..

**Q: can this fan be used on the end of a hose connected to an engine exhaust pipe to help get the exhaust out of my garage?**
A: Usually when you are venting a car exhaust you would hook the hose directly onto the tailpipe and then vent it outside. The force of the exhaust would not need a fan. You could put this fan above that area and suck out any air that you do not want.
I have mine hooked up basically for the winter time to suck the hot air around my furnace and heat another room in the basement, and it works great.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Nice fan, quiet depending on how you install it.
*by S***T on March 17, 2026*

Have this hooked up to the far end vent for a Bambu P2S printer to exhaust toxic fumes. Yes the instructions say don't use this for toxic fumes but I figured if thousands of others have been using this for their printers over the years it must be ok. There aren't a ton of toxic fumes, and they're not flammable fumes either. I would not use this for flammable fumes. It moves a decent amount of air once it gets to the midway power setting. On max it move a little more but this doesn't need to be hair-dryer speed to do it's intended job. Yes it's a little noisy if you don't have any vent tubes hooked up to it. I have it midway on power and connected to a flexible 4" dryer duct on one side and a tin dryer duct on the other. I can hear it from 5 feet away but barely. If you've ever been next to a RADON fan it kind of sounds like that...super muffled. It's right below our master closet and if I stand in the closet and purposefully listen, with no other noises going on, I can barely hear it but I know what I'm listening for. The spousal unit has not noticed at all, and she's in there a lot. I think that's her safe space, not that she needs one mind you. But with the clothes everywhere it helps to shut out distractions and noise and I see how it can be calming to hang out in there. Back to the topic--Once you turn it on it seems to start at 100% power, then quickly lowers power to wherever you have it set. Nothing wrong with that, just wanted to point it out. I have it plugged into a smart receptacle, so I can turn it on from afar. Should come in handy if I forget to turn it on and start a print and leave the house. Can also monitor energy usage, but I don't think it draws much. The housing is exactly 4" diameter, the exact same as most hard/tin 4" ducts. This is a little annoying. I have it connected directly to an outdoor dryer vent, and the tube that came with that vent is the exact same size as the housing, so I had to buy a short super thin adapter and clamp the vent to the adapter, then the fan to the adapter. I did get a 4" flexible dryer duct attached to the other side, little challenging but it fit. I only use about 4ft of the flexible duct, then it goes to hard duct and runs across the room to the printer.

### ⭐⭐⭐⭐⭐ Worth the cost.
*by C***C on June 13, 2026*

Works well for price point, not had any issues with it, dial for speed control functions well.

### ⭐⭐⭐⭐ Not sure about the noise level
*by K***Y on September 5, 2021*

I bought this S6 fan to create some circulation in my basement The fan works well and seems to be well-made. My basement is about 2000 sq feet and is chopped into these three main areas: Space A. Unfinished area (about 350 sq feet) Space B. Main living area (about 1200 sq feet) Space C. Exercise/rec room. (450 sq feet) Space A connects to Space B via a door. Space B connects to Space C through another door. Space C does not connect to Space A directly. We have a humidity/mold problem throughout the basement, so I installed a dehumidifier in Space A. I wanted to pull air from Space C over the wall into Space A then push it out to Space B and back to Space C to complete the cycle. I am hoping that by circulating some air through space A the dehumidifier will dry out the whole basement over time. My dehumidifier is rated to process 160/190 cfm on its two speed settings. So I bought this 265 cfm AC Infinity S6 fan and 8' of 6" flex duct from AC Infinity as a circulation fan. My configuration is as follows: I cut a a 6" round opening in the Space C ceiling. I put a 90" hard elbow there and attached the 8' of 6" duct that terminates in Space A. In Space A at the other end of the duct I mounted this fan onto a 12x4x6 90-degree register box and a 12x4 diffuser. I hope to pull over some air from Space C past the dehumidifier. Issue: After completing the install, the noise level in Space C at all fan speeds (where the intake vent is) is higher than I would have liked. I measured some dB readings with my iphone app and here are the results. [NOTE: For reference, in this next part I am looking at the speed control's dial like a clock face, where you have the "off" position at the 6:00 (bottom) position. Then "Low" is at 8:00. "Medium" is at 12:00 (top). And "High" at 4:00 position.] While the controller seems infinite, there are really only three or four distinct areas of power/noise: At the 8:00 and 9:00 position, the noise level in space C is about 40 dB. At 10:00 position it jumps to 49 dB (nearly ten times louder). At 11:00 - 12:00 it is about 52 dB. Then at the 1:00 position it jumps to 54 dB and doesn't really get much louder from there. Recall that the dB scale is logarithmic, not linear. If there is a relationship between noise and cfm, then between the 1:00 position and 4:00 position, it seems there is very little air volume increase. I am not an HVAC engineer nor a sound expert, but it seems you have a low 40-ish dB setting, a low 50-ish dB setting and then a 54 dB setting, all as measured on the inlet-side vent, which for me is 8' from the fan. I would like to make it quieter in Space C because my wife spends a lot of time down there, and she doesn't tolerate noise well. I don't really care about the noise level in space A, as it is not occupied and the dehumidifier (generating 52 - 54 dB) is in there too. But for reference, with the fan attached right to the register outlet box, the noise levels in Space A (without the dehumidifier running) are 2 - 4 dB higher than the above readings from under the inlet vent in Space C. Note: I have 9' basement ceilings, and I took all measurements directly beneath the vents at 5' up from the floor. Not a scientific result, but I hoped to give you all some idea of the noise levels.

## Frequently Bought Together

- AC Infinity RAXIAL S8, Inline Booster Duct Fan 8” with Speed Controller - Low Noise Inline HVAC Blower Can Fan for Basements, Bathrooms, Kitchens, Workshops
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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-08-03*