---
product_id: 544228668
title: "Inline Booster Duct Fan 4” 106 CFM with Speed Controller, HVAC Exhaust Ventilation Fan with Low Noise for Basements, Bathrooms, Kitchens, Attics, Grow Tents"
brand: "vivosun"
price: "849 kr"
currency: DKK
in_stock: true
reviews_count: 5
category: "Vivosun"
url: https://www.desertcart.dk/products/544228668-inline-booster-duct-fan-4-106-cfm-with-speed-controller
store_origin: DK
region: Denmark
---

# 106 CFM airflow under 28 dB noise 2990 RPM speed Inline Booster Duct Fan 4” 106 CFM with Speed Controller, HVAC Exhaust Ventilation Fan with Low Noise for Basements, Bathrooms, Kitchens, Attics, Grow Tents

**Brand:** vivosun
**Price:** 849 kr
**Availability:** ✅ In Stock

## Summary

> 💨 Boost your airflow, not your noise — ventilation that works as hard as you do!

## Quick Answers

- **What is this?** Inline Booster Duct Fan 4” 106 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?** 849 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/544228668-inline-booster-duct-fan-4-106-cfm-with-speed-controller)

## 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 with permanently lubricated motor bearings
- • **Compact Yet Mighty:** 4-inch diameter fits tight spaces without sacrificing performance
- • **Whisper-Quiet Power:** Operates below 28 dB for distraction-free airflow
- • **Versatile Ventilation:** Perfect for bathrooms, kitchens, basements, and grow tents
- • **Precision Speed Control:** Adjust airflow seamlessly with the variable speed controller

## Overview

The VIVOSUN Inline Booster Duct Fan delivers a powerful 106 CFM airflow at 2990 RPM while maintaining ultra-quiet operation under 28 dB. Its compact 4-inch design fits tight spaces and features a durable steel housing with a maintenance-free, permanently lubricated motor. Equipped with an adjustable speed controller, it offers customizable ventilation ideal for HVAC systems, grow tents, and household spaces like bathrooms and kitchens.

## Description

VIVOSUN inline duct fan helps with ventilation issues. This duct fan with speed controller is perfect for boosting airflow in long runs of ducting. Tight, precise construction eliminates rattling and reduces wear and tear to give the element a long life.

Review: Se ve y se siente la calidad en los materiales, hace muy poco ruido a maxima potencia aunque me hubiera gustado que tuviera más potencia pero cumple.
Review: Works well. Tight fit on 6” pipe but does fit. Simple to use. Good price.

## 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 4 inches, speed of 2990 RPM and 106 CFM airflow
- Low Noise: Superior balanced centrifugal impeller for long service life & quiet operation; A less than 28 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 | B0BVPW3B35 |
| Air Flow Capacity | 106 Cubic Feet Per Minute |
| Best Sellers Rank | #25,755 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #44 in Household Ventilation Fans |
| Blade Length | 4 Inches |
| Blade Material | Plastic |
| Brand Name | VIVOSUN |
| Collection Name | Duct Fans |
| Color | Black |
| Connector Type | Standard AC power plug |
| Control Method | App |
| Controller Type | Button Control |
| Customer Reviews | 4.1 4.1 out of 5 stars (850) |
| Electric Fan Design | Blower |
| Finish Type | Metallic |
| Included Components | Inline Duct Fan with Speed Controller |
| Indoor Outdoor Usage | Indoor |
| Is Product Cordless | No |
| Item Dimensions D x W x H | 9.9D x 9.9W x 15H centimeters |
| Item Type Name | Inline Duct Fan with Speed Controller |
| Main Power Connector Type | Standard Canadian Electrical Plug |
| Manufacturer | VIVOSUN |
| Material | Alloy Steel |
| Model Name | VSV-IFB4 |
| Model Number | VSV-IFB4 |
| Mounting Type | Wall Mount |
| Noise Level | 28 Decibels |
| Number of Power Levels | 2 |
| Number of Speeds | 2 |
| Power Source | Corded Electric |
| Recommended Uses For Product | Exhausting |
| Room Type | Bathroom, Kitchen |
| Special Features | Low Noise |
| Specification Met | HVAC |
| Speed | 2990 RPM |
| Standby Power Shutoff | [INF] |
| Style | Adjustable Speed |
| Switch Type | Push Button |
| Theme | Home Ventilation |
| Unit Count | 1 Count |
| Wattage | 14 watts |

## Product Details

- **Brand:** VIVOSUN
- **Colour:** Black
- **Electric fan design:** Blower
- **Mounting type:** Wall Mount
- **Power source:** Corded Electric
- **Product dimensions:** 9.9D x 9.9W x 15H centimeters
- **Recommended uses for product:** Exhausting
- **Room type:** Bathroom, Kitchen
- **Special features:** Low Noise
- **Style:** Adjustable Speed

## Images

![Inline Booster Duct Fan 4” 106 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/71owD0wPRVL.jpg)

## Available Options

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

## 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

### ⭐⭐⭐⭐⭐ Review
*by A***L on 29 February 2024*

Se ve y se siente la calidad en los materiales, hace muy poco ruido a maxima potencia aunque me hubiera gustado que tuviera más potencia pero cumple.

### ⭐⭐⭐⭐⭐ Review
*by S***L on 27 February 2026*

Works well. Tight fit on 6” pipe but does fit. Simple to use. Good price.

### ⭐⭐⭐⭐⭐ Review
*by C***. on 3 September 2025*

Very happy with this product. I installed it into a green house connected to a thermostat and ran the supply off of a HVAC leg. With the air hepa filtered on the unit and the house temp at a constant 70/71, when it calls for cooling the fan pulls that extra air in with the adjustable speed and power to move cool air in. Easy to install, works great, and Vivosun Quality as always.

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-04-23*