---
product_id: 30225431
title: "6 Inch Inline Duct Fan 240 CFM, HVAC Exhaust Ventilation Fan with Low Noise for Basements, Bathrooms, Kitchens and Attics, Silver"
brand: "vivosun"
price: "€ 76.88"
currency: EUR
in_stock: true
reviews_count: 11
category: "Vivosun"
url: https://www.desertcart.fi/products/30225431-6-inch-inline-duct-fan-240-cfm-hvac-exhaust-ventilation
store_origin: FI
region: Finland
---

# 240 CFM airflow ≤37 dB ultra-quiet 2960 RPM motor speed 6 Inch Inline Duct Fan 240 CFM, HVAC Exhaust Ventilation Fan with Low Noise for Basements, Bathrooms, Kitchens and Attics, Silver

**Brand:** vivosun
**Price:** € 76.88
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** 6 Inch Inline Duct Fan 240 CFM, HVAC Exhaust Ventilation Fan with Low Noise for Basements, Bathrooms, Kitchens and Attics, Silver by vivosun
- **How much does it cost?** € 76.88 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/30225431-6-inch-inline-duct-fan-240-cfm-hvac-exhaust-ventilation)

## 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

- • **Whisper-Quiet Operation:** Enjoy efficient airflow at noise levels below 37 dB—perfect for work, rest, or grow rooms.
- • **Versatile Multi-Room Use:** Ideal for basements, bathrooms, kitchens, attics, and hydroponic setups—boost your indoor air quality everywhere.
- • **Durable Heat-Resistant Motor:** Permanently lubricated bearings and metal blades withstand up to 130°C for long-lasting reliability.
- • **Easy Maintenance & Installation:** Lightweight design with simple cleaning protocols keeps your system running smoothly and hassle-free.
- • **Powerful Airflow, Compact Design:** Maximize ventilation with a sleek 6-inch fan that fits tight spaces without sacrificing performance.

## Overview

The VIVOSUN 6 Inch Inline Duct Fan delivers a robust 240 CFM airflow at a whisper-quiet 37 dB noise level, powered by a durable 2960 RPM motor with heat-resistant metal blades. Compact and lightweight, it fits seamlessly into tight HVAC spaces, making it perfect for enhancing ventilation in basements, bathrooms, kitchens, attics, and grow rooms. Designed for long-term use with permanently lubricated bearings and easy maintenance, this fan ensures efficient, reliable air circulation to keep your environment comfortable and fresh.

## Description

VIVOSUN 6 Inch Inline Duct Fan 240 CFM, HVAC Exhaust Ventilation Fan with Low Noise for Basements, Bathrooms, Kitchens and Attics, Silver - desertcart.com

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
- 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 2960 RPM and 240 CFM air flow
- Low Noise: Superior balanced centrifugal impeller for long service life & quiet operation; A less than 37 dB noise level does not have any harm and will not disturb your work
- 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
- Specifications: Voltage 110/120V, Power 37W; Max Operating Temp of Motor is 130℃ / 266℉; Max Ambient Temp is 60℃ / 140℉; Note: Please turn the fan off immediately if the blades get stuck by other objects
- 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 | B01C82SZRM |
| Air Flow Capacity | 240 Cubic Feet Per Minute |
| Best Sellers Rank | #2,198 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #3 in Hydroponic Ventilation Equipment |
| Blade Length | 6 Inches |
| Brand | VIVOSUN |
| Color | Silver |
| Control Method | App |
| Customer Reviews | 4.2 4.2 out of 5 stars (15,343) |
| Date First Available | February 26, 2016 |
| Efficiency | Highly Efficient |
| Electric fan design | Exhaust Fan |
| Finish Type | Painted |
| Included Components | Cord |
| Indoor/Outdoor Usage | Indoor |
| Is Cordless? | No |
| Is Discontinued By Manufacturer | No |
| Item Weight | 2.91 pounds |
| Item model number | 331101-6 |
| Manufacturer | VIVOSUN |
| Model Name | vivosun |
| Noise Level | 37 Decibels |
| Number of Power Levels | 1 |
| Power Source | Corded Electric |
| Product Dimensions | 6"D x 6"W x 7"H |
| Recommended Uses For Product | Air Circulation, Exhausting, Ventilating |
| Room Type | Bathroom, Kichen |
| Size | 6"& No Speed Controller |
| Special Feature | Lightweight |
| Speed | 2960 RPM |
| Style | Modern |
| UPC | 714119466267 |
| Voltage | 120 Volts |
| Wattage | 37 watts |

## Product Details

- **Brand:** VIVOSUN
- **Color:** Silver
- **Controller Type:** Button Control
- **Electric fan design:** Exhaust Fan
- **Power Source:** Corded Electric
- **Product Dimensions:** 6"D x 6"W x 7"H
- **Recommended Uses For Product:** Air Circulation, Exhausting, Ventilating
- **Room Type:** Bathroom, Kichen
- **Special Feature:** Lightweight
- **Style:** Modern

## Images

![6 Inch Inline Duct Fan 240 CFM, HVAC Exhaust Ventilation Fan with Low Noise for Basements, Bathrooms, Kitchens and Attics, Silver - Image 1](https://m.media-amazon.com/images/I/71cYW1ZzUYL.jpg)

## Available Options

This product comes in different **Material Type, Size** options.

## Questions & Answers

**Q: Can you hook up a speed control to this booster?**
A: No you do not want to use a speed controller. You will burn this motor out in days. You want to use speed controllers on centrifugal fans, not booster fans. The motor is ment for the rated voltage, nothing more nothing less. Please don't listen to the comments saying speed controllers are compatible with this booster fan.

**Q: Would this fan properly vent a 1000w hps lamp?**
A: I am cooling two 600 W HPS lamps with a single fan and it works well

**Q: Will it overheat with a flow blockage?**
A: Very small motor like a bathroom exhaust fan. Will not overheat because not an air tight situation.

**Q: I could definitely hook this up on a timer, but is it okay if the fan happens to run when the AC is not? (Context, booster for one of my bedrooms)**
A: If the AC fan is not running,  the duct fan will *tend* to draw air from registers in other rooms rather than through the idle ac unit.  So, it will still work to equalize temperatures between rooms,  which is likely your goal.   On the negative side,  it will be drawing from the ceilings,  the hottest part of the rooms.

## 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 Finland*
*Store origin: FI*
*Last updated: 2026-02-17*