---
product_id: 544350447
title: "VIVOSUN Inline Booster Duct Fan 6” 275 CFM with Speed Controller, HVAC Exhaust Ventilation Fan with Low Noise for Basements, Bathrooms, Kitchens, Attics, Grow Tents"
brand: "vivosun"
price: "A$97"
currency: AUD
in_stock: true
reviews_count: 13
category: "Vivosun"
url: https://www.desertcart.com.au/products/544350447-vivosun-inline-booster-duct-fan-6-275-cfm-with-speed
store_origin: AU
region: Australia
---

# 275 CFM airflow power Ultra-quiet <35 dB noise Adjustable speed control VIVOSUN Inline Booster Duct Fan 6” 275 CFM with Speed Controller, HVAC Exhaust Ventilation Fan with Low Noise for Basements, Bathrooms, Kitchens, Attics, Grow Tents

**Brand:** vivosun
**Price:** A$97
**Availability:** ✅ In Stock

## Summary

> 💨 Elevate your airflow game—quiet, powerful, and built to perform!

## Quick Answers

- **What is this?** VIVOSUN Inline Booster Duct Fan 6” 275 CFM with Speed Controller, HVAC Exhaust Ventilation Fan with Low Noise for Basements, Bathrooms, Kitchens, Attics, Grow Tents by vivosun
- **How much does it cost?** A$97 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/544350447-vivosun-inline-booster-duct-fan-6-275-cfm-with-speed)

## Best For

- vivosun enthusiasts

## Why This Product

- Trusted vivosun brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Durable steel housing and permanently lubricated motor bearings ensure maintenance-free reliability.
- • **Powerful Airflow Boost:** 275 CFM moves air efficiently through tight spaces for optimal ventilation.
- • **Versatile Installation:** Compact 6-inch design fits bathrooms, basements, kitchens, attics, and hydroponic grow rooms.
- • **Whisper-Quiet Operation:** Balanced centrifugal impeller keeps noise under 35 dB—work or relax without distraction.
- • **Customizable Speed Control:** Variable speed dial lets you dial in the perfect airflow for any room or grow tent.

## Overview

The VIVOSUN Inline Booster Duct Fan delivers a robust 275 CFM airflow with a 6-inch diameter, powered by a durable, low-maintenance motor featuring permanently lubricated bearings. Its adjustable speed controller offers precise airflow customization, while the ultra-quiet operation at under 35 dB ensures minimal noise disruption. Designed for versatile indoor use—from bathrooms to grow tents—this compact fan combines efficiency, durability, and whisper-quiet performance to enhance any HVAC or ventilation setup.

## Description

desertcart.com: VIVOSUN Inline Booster Duct Fan 6” 275 CFM with Speed Controller, HVAC Exhaust Ventilation Fan with Low Noise for Basements, Bathrooms, Kitchens, Attics, Grow Tents : Patio, Lawn & Garden

Review: It works for me in a harsh environment. - I use this to extract heat from a portable A/C unit. I needed a fan with metallic blades due to heat. The heat it is exposed to will warp plastic fan blades. I was worried about the fan motor’s exposure to heat as well. This fan (in my application) is exposed to 145 degree internal duct heat for hours at a time which is right at the end of the motor’s advertised tolerance. It has been working without issues for over two months in Florida weather. I run it for as long as 6 hours straight, as needed. I use this fan to extract exhaust heat from a portable 9000 BTU A/C unit in my garage. This unit may also have use in a hurricane aftermath scenario (as in cooling a tent erected inside the house for sleeping (powered by a gas generator located OUTSIDE), if the power is out for weeks. This fan is hard mounted to a plate which I fabricated which seals the window opening completely. It can be removed from the window in less than 30 seconds. It also locks the window to help avoid entry from outside. I insulated the original flex duct with commercial grade insulation material used for A/C ducts in attics. The portable A/C unit is connected to the insulated duct, and then to this fan assembly at the window plate on the other end. The straight 4 foot duct run has two 45° elbows... this fan creates a vacuum in the duct to draw the heat outside better than the A/C u it could before. These portable A/C units are completely useless unless you facilitate the extraction of the heated air they produce. The uninsulated plastic exhaust ductwork they come with simply transfers all the heat the create right back into the room before it gets outside. It’s so hot in fact, it melts and distorts the window mount that comes with the A/C unit, allowing the heated air to literally blow back into the space you are trying to cool! It would heat and cool the garage simultaneously. Incredibly stupid and costly. To remedy, I insulated the exhaust duct from the A/C unit all the way up the the fan (at the window plate) in order to keep the heat in the duct, and not let it radiate back into the garage airspace. This fan sucks the hot air out. The window/fan mounting plate is made of 3/8 finish grade plywood, and painted with a two part epoxy, as to be waterproof and look nice. The fan is mounted to the plywood with a metal ring I fabricated using rivets, and it seals with a gasket. Control of the fan is manual, via the same power strip that supplies the A/C unit. The sound level is lower than the A/C unit’s noise output. The result: My garage can now reach 78°, with a 50% humidity level on a July day like today. Without the AC, the garage is 85% humidity, and 95°F.
Review: A little loud but they move air - I bought these to blow air up through new vents that I installed over my wood stove in the basement. The basement would get way too warm and the upstairs was too cold. I cut new vents through the floor and installed new duct work with these fans just before the floor vent. They blow so much warm air upstairs it is unbelievable. My only complaint is that they are a little loud but my main floor is now a comfy 70 degrees F and my basement is still a cozy 75 F. Would definitely buy again.

## Features

- Durable: The fan has a strong motor which features a permanently lubricated bearing that operates quietly and requires no maintenance; The quality steel housing makes it sturdy and built to last
- Adjustable Speed: A variable speed controller on the power cord enables the fan to run at different speeds; With this speed switch, you can adjust it to the desired airflow level
- Compact But Efficient: This duct fan is compact and lightweight enough to be installed in areas with little available space; With a diameter of 6 inches, speed of 3120 RPM and 275 CFM airflow
- Low Noise: Superior balanced centrifugal impeller for long service life & quiet operation; A less than 35 dB noise level does not have any harm and will not disturb your life
- Wide Applications: You can have it in bathrooms, kitchens, workshops, basements, attics and etc, in order to boost airflow in HVAC systems; Also, it can be used in grow rooms as intake fans or exhaust fan
- To maintain optimal performance of the exhaust fan, clean the fan after the first week of use with the carbon filter connected, and then clean regularly based on usage conditions

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BVQ3Y7QX |
| Air Flow Capacity | 275 Cubic Feet Per Minute |
| Best Sellers Rank | #1,649 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #3 in Hydroponic Ventilation Equipment |
| Blade Length | 6 Inches |
| Brand | VIVOSUN |
| Color | Black |
| Control Method | App |
| Customer Reviews | 4.2 4.2 out of 5 stars (15,373) |
| Efficiency | High Efficiency |
| Electric fan design | Exhaust Fan |
| Finish Type | Powder Coated or Painted |
| Included Components | Inline Duct Fan with Speed Controller |
| Indoor/Outdoor Usage | Indoor |
| Installation Type | easy to install |
| Is Cordless? | No |
| Item Weight | 2.97 pounds |
| Item model number | VSV-IFB6 |
| Manufacturer | VIVOSUN |
| Model Name | VSV-IFB6 |
| Noise Level | 35 Decibels |
| Number of Power Levels | 2 |
| Power Source | Corded Electric |
| Product Dimensions | 5.9"D x 5.9"W x 7.2"H |
| Recommended Uses For Product | Travel |
| Room Type | Bathroom |
| Size | 6"& Speed Controller |
| Special Feature | Low Noise |
| Speed | 3120 RPM |
| Style | Adjustable Speed |
| Voltage | 120 Volts |
| Wattage | 40 watts |

## Product Details

- **Brand:** VIVOSUN
- **Color:** Black
- **Electric fan design:** Exhaust Fan
- **Mounting Type:** Ceiling Mount
- **Power Source:** Corded Electric
- **Product Dimensions:** 5.9"D x 5.9"W x 7.2"H
- **Recommended Uses For Product:** Travel
- **Room Type:** Bathroom
- **Special Feature:** Low Noise
- **Style:** Adjustable Speed

## Images

![VIVOSUN Inline Booster Duct Fan 6” 275 CFM with Speed Controller, HVAC Exhaust Ventilation Fan with Low Noise for Basements, Bathrooms, Kitchens, Attics, Grow Tents - Image 1](https://m.media-amazon.com/images/I/41-MJ4CxD1L.jpg)
![VIVOSUN Inline Booster Duct Fan 6” 275 CFM with Speed Controller, HVAC Exhaust Ventilation Fan with Low Noise for Basements, Bathrooms, Kitchens, Attics, Grow Tents - Image 2](https://m.media-amazon.com/images/I/41MSGimVrcL.jpg)
![VIVOSUN Inline Booster Duct Fan 6” 275 CFM with Speed Controller, HVAC Exhaust Ventilation Fan with Low Noise for Basements, Bathrooms, Kitchens, Attics, Grow Tents - Image 3](https://m.media-amazon.com/images/I/41V-fE0LOrL.jpg)
![VIVOSUN Inline Booster Duct Fan 6” 275 CFM with Speed Controller, HVAC Exhaust Ventilation Fan with Low Noise for Basements, Bathrooms, Kitchens, Attics, Grow Tents - Image 4](https://m.media-amazon.com/images/I/41sjqyOhZBL.jpg)
![VIVOSUN Inline Booster Duct Fan 6” 275 CFM with Speed Controller, HVAC Exhaust Ventilation Fan with Low Noise for Basements, Bathrooms, Kitchens, Attics, Grow Tents - Image 5](https://m.media-amazon.com/images/I/51PTcG7oUUL.jpg)

## Questions & Answers

**Q: Seller - does this have the same bearings as your basic 100cfm plain metal fan?**
A: Dear Customer,
Yes,they both use ball bearings.
Feel free to contact us any time if you have other questions, we'll be happy to help!
All The Best,
The VIVOSUN Customer Care Team

**Q: What is votage**
A: Dear Customer,
The voltage of the fan:120V.
Feel free to contact us any time if you have other questions, we'll be happy to help!
All The Best,
The VIVOSUN Customer Care Team

**Q: Is 106 cfm the minimum or maximum pull?**
A: Dear Customer,
It's the maximum pull.
Feel free to contact us any time if you have other questions, we'll be happy to help!
All The Best,
The VIVOSUN Customer Care Team

## Customer Reviews

### ⭐⭐⭐⭐⭐ It works for me in a harsh environment.
*by J***C on July 18, 2019*

I use this to extract heat from a portable A/C unit. I needed a fan with metallic blades due to heat. The heat it is exposed to will warp plastic fan blades. I was worried about the fan motor’s exposure to heat as well. This fan (in my application) is exposed to 145 degree internal duct heat for hours at a time which is right at the end of the motor’s advertised tolerance. It has been working without issues for over two months in Florida weather. I run it for as long as 6 hours straight, as needed. I use this fan to extract exhaust heat from a portable 9000 BTU A/C unit in my garage. This unit may also have use in a hurricane aftermath scenario (as in cooling a tent erected inside the house for sleeping (powered by a gas generator located OUTSIDE), if the power is out for weeks. This fan is hard mounted to a plate which I fabricated which seals the window opening completely. It can be removed from the window in less than 30 seconds. It also locks the window to help avoid entry from outside. I insulated the original flex duct with commercial grade insulation material used for A/C ducts in attics. The portable A/C unit is connected to the insulated duct, and then to this fan assembly at the window plate on the other end. The straight 4 foot duct run has two 45° elbows... this fan creates a vacuum in the duct to draw the heat outside better than the A/C u it could before. These portable A/C units are completely useless unless you facilitate the extraction of the heated air they produce. The uninsulated plastic exhaust ductwork they come with simply transfers all the heat the create right back into the room before it gets outside. It’s so hot in fact, it melts and distorts the window mount that comes with the A/C unit, allowing the heated air to literally blow back into the space you are trying to cool! It would heat and cool the garage simultaneously. Incredibly stupid and costly. To remedy, I insulated the exhaust duct from the A/C unit all the way up the the fan (at the window plate) in order to keep the heat in the duct, and not let it radiate back into the garage airspace. This fan sucks the hot air out. The window/fan mounting plate is made of 3/8 finish grade plywood, and painted with a two part epoxy, as to be waterproof and look nice. The fan is mounted to the plywood with a metal ring I fabricated using rivets, and it seals with a gasket. Control of the fan is manual, via the same power strip that supplies the A/C unit. The sound level is lower than the A/C unit’s noise output. The result: My garage can now reach 78°, with a 50% humidity level on a July day like today. Without the AC, the garage is 85% humidity, and 95°F.

### ⭐⭐⭐⭐⭐ A little loud but they move air
*by N***E on November 21, 2025*

I bought these to blow air up through new vents that I installed over my wood stove in the basement. The basement would get way too warm and the upstairs was too cold. I cut new vents through the floor and installed new duct work with these fans just before the floor vent. They blow so much warm air upstairs it is unbelievable. My only complaint is that they are a little loud but my main floor is now a comfy 70 degrees F and my basement is still a cozy 75 F. Would definitely buy again.

### ⭐⭐⭐⭐ it works well, but it is not quiet by any stretch of the imagination.
*by K***C on January 4, 2026*

the fan moves a lot of air, and the speed control is reasonably linear allowing for smooth speed adjustments thought-out its range without any spots that seem to not make much difference. it doesn't come with any means of attaching or hanging it at all, no strap, nothing!!! i grow veggies in the tent rather than weed like most here so i have no need for a carbon filter and a strap or mounting bracket would of been a nice addition. it's reasonably light weight so i installed it into one of the vent openings of a grow tent and just used the synch cords to secure it, it works well. i have it just to help with heat removal in the top of the tent when the lights are on, i keep the lower vents of the tent open all the time so there's a bit of natural thermal lift, but on hot days i had a little more temp climb than i liked. i have noticed that the room i have the tent in gets a good bit warmer with the tent venting into it so i have a 16ft 6" hose and it fit the fan perfectly, and i'll get a window vent to vent the heat outdoors. other than it being a bit noisy, it's a great addition to the grow tent.

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-01-25*