---
product_id: 30245394
title: "VIVOSUN 4 Inch Inline Duct Fan 100 CFM, HVAC Exhaust Ventilation Fan with Low Noise for Basements, Bathrooms, Kitchens and Attics, Silver"
brand: "vivosun"
price: "43326CFA"
currency: XOF
in_stock: true
reviews_count: 13
category: "Vivosun"
url: https://www.desertcart.sn/products/30245394-vivosun-4-inch-inline-duct-fan-100-cfm-hvac-exhaust
store_origin: SN
region: Senegal
---

# 100 CFM airflow <30 dB ultra-quiet 2930 RPM motor speed VIVOSUN 4 Inch Inline Duct Fan 100 CFM, HVAC Exhaust Ventilation Fan with Low Noise for Basements, Bathrooms, Kitchens and Attics, Silver

**Brand:** vivosun
**Price:** 43326CFA
**Availability:** ✅ In Stock

## Summary

> 💨 Elevate your airflow game—quiet, compact, and unstoppable!

## Quick Answers

- **What is this?** VIVOSUN 4 Inch Inline Duct Fan 100 CFM, HVAC Exhaust Ventilation Fan with Low Noise for Basements, Bathrooms, Kitchens and Attics, Silver by vivosun
- **How much does it cost?** 43326CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/30245394-vivosun-4-inch-inline-duct-fan-100-cfm-hvac-exhaust)

## 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

- • **Powerful Yet Compact:** Delivers 100 CFM airflow in a sleek 4-inch design—perfect for tight spaces.
- • **Versatile Ventilation:** Ideal for basements, bathrooms, kitchens, attics, and even grow rooms—boost your air quality everywhere.
- • **Whisper-Quiet Operation:** Runs below 30 decibels, so your focus stays uninterrupted.
- • **Durability Meets Efficiency:** Permanently lubricated motor bearings ensure maintenance-free, long-lasting performance.
- • **Easy Installation & Control:** Lightweight with push-button control and a 5.5-foot cord for flexible setup.

## Overview

The VIVOSUN 4 Inch Inline Duct Fan offers a robust 100 CFM airflow powered by a 2930 RPM motor, all while maintaining a whisper-quiet noise level under 30 dB. Its compact 4-inch size fits seamlessly into tight spaces, making it perfect for HVAC ventilation in basements, bathrooms, kitchens, attics, and grow rooms. Featuring a durable, permanently lubricated motor for maintenance-free operation, this fan combines efficiency with versatility to enhance your indoor air quality effortlessly.

## Description

Who are we? Vivosun is the global leader in at-home growing technology & equipment. With over 10 years of demonstrated excellence in the development and production of growing tools, we have established ourselves as a trusted partner for every step in the growing process and for every level of grower. Who are we? Vivosun is the global leader in at-home growing technology & equipment. With over 10 years of demonstrated excellence in the development and production of growing tools, we have established ourselves as a trusted partner for every step in the growing process and for every level of grower. Smart Grow System Vivosun's smart grow system enables growers to master the elements for optimal lighting and ventilation to achieve ideal grow results. Smart Grow System Vivosun's smart grow system enables growers to master the elements for optimal lighting and ventilation to achieve ideal grow results. Witness the Miracle of Growth Master All the Elements You May Also Need Grow Smarter Shop Our Best Sellers How did we get our start? Founded in California, Vivosun is a leading manufacturer of indoor horticultural equipment. What makes our products unique? We will help you manage your plants with scientific precision and control all aspects of your grow with high-quality technology and tools including durable growing enclosures;Whether you grow indoors or out, we provide everything you need to grow the highest quality plants in the shortest amount of time. Why do we love what we do? Our mission is to empower growers at all levels and of all types to grow the best of what they love. How did we get our start? Founded in California, Vivosun is a leading manufacturer of indoor horticultural equipment. What makes our products unique? We will help you manage your plants with scientific precision and control all aspects of your grow with high-quality technology and tools including durable growing enclosures;Whether you grow indoors or out, we provide everything you need to grow the highest quality plants in the shortest amount of time. Why do we love what we do? Our mission is to empower growers at all levels and of all types to grow the best of what they love.

Review: Works - Installing was easy, worked well this winter to keep our kitchen warm,noise wasn’t an issue
Review: POWERFUL, especially for the low wattage. Love it. Won't buy cosmetically-marked-up fans again. - I don't care about plastic housings and I'm happy to wire my own switches where relevant, so for me and the applications for which I use fans (in this case, cooling inside my truck/paired with optional swamp cooler water flow), this is awesome bang for my buck. It's a bit loud but I don't care, that's to be expected when going for something with high airflow. I do wish I'd considered getting a couple of different sizes because this is actually more powerful than I need for its current use, but that's fine, sooner or later I'll move it and the attached swamp cooler setup I built to a different larger space and build a new smaller one for my truck. I'd much rather overengineer something than have it be insufficient (like my first pitiful swamp cooler attempt with computer case fans -- fun starter project to learn about wiring in series and wiring a three-prong switch, but totally inadequate for cooling the inside of a Ford Explorer!). So yeah, can't speak to how good this is for actual use in ducts, but as a cheap powerful basic fan for a DIYer doing something fan-related, it's a great buy and I'm thrilled I got it. The only way it could be more perfect would be if it had an on/off switch already integrated into the power cord, but that's not a big deal and of course it's not like it advertised/implied that it would have one. It's exactly what I expected, except more powerful. Everything about it seems solidly made and I anticipate it'll last a very long time. I'll most likely buy from this same manufacturer again in the future when I need fans of other sizes.

## Features

- Durable Fan Material: Constructed from reinforced and corrosion-resistant metal for long-lasting reliability; 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 4 inches, speed of 2930 RPM and 100 CFM air flow
- Low Noise: Superior balanced centrifugal impeller for long service life & quiet operation; A less than 30 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 14W; 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 | B01C82SYZ0 |
| Air Flow Capacity | 100 Cubic Feet Per Minute |
| Best Sellers Rank | #29,993 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #88 in Household Ventilation Fans |
| Blade Length | 4 Inches |
| Blade Material | Plastic |
| Brand | VIVOSUN |
| Brand Name | VIVOSUN |
| Cable Length | 5.5 Feet |
| Collection Name | Inline Duct Fans |
| Color | Silver |
| Control Method | App |
| Controller Type | Button Control |
| Customer Reviews | 4.2 out of 5 stars 9,748 Reviews |
| Electric Fan Design | Exhaust Fan |
| Electric fan design | Exhaust Fan |
| Finish Type | Painted |
| Included Components | Cord |
| Indoor Outdoor Usage | Indoor |
| Installation Type | built-in |
| Is Product Cordless | No |
| Item Dimensions D x W x H | 4"D x 7"W x 4"H |
| Item Weight | 1.68 Pounds |
| Manufacturer | VIVOSUN |
| Material | Metal |
| Model Name | vivosun |
| Model Number | 331101-4 |
| Motor Type | Brushless |
| Mounting Type | Duct Mount |
| Noise Level | 30 Decibels |
| Number of Blades | 3 |
| Number of Power Levels | 1 |
| Number of Speeds | 3 |
| Part Number | CECOMINOD070342 |
| Power Source | Electric |
| Product Dimensions | 4"D x 7"W x 4"H |
| Recommended Uses For Product | Basements |
| Room Type | Bathroom |
| Size | 4"& No Speed Controller |
| Smart Home Compatibility | Not Smart Home Compatible |
| Special Features | Lightweight, Portable |
| Speed | 2930 RPM |
| Style | Modern |
| Switch Type | Push Button |
| UPC | 714119466250 |
| Unit Count | 1.0 Count |
| Voltage | 120 Volts |
| Warranty Description | Manufacturer Warranty for 360 days from date of purchase. |
| Wattage | 14 watts |

## Product Details

- **Brand:** VIVOSUN
- **Color:** Silver
- **Electric fan design:** Exhaust Fan
- **Mounting Type:** Duct Mount
- **Power Source:** Electric
- **Product Dimensions:** 4"D x 7"W x 4"H
- **Recommended Uses For Product:** Basements
- **Room Type:** Bathroom
- **Special Feature:** Lightweight, Portable
- **Style:** Modern

## Images

![VIVOSUN 4 Inch Inline Duct Fan 100 CFM, HVAC Exhaust Ventilation Fan with Low Noise for Basements, Bathrooms, Kitchens and Attics, Silver - Image 1](https://m.media-amazon.com/images/I/71TW4VUEXiL.jpg)
![VIVOSUN 4 Inch Inline Duct Fan 100 CFM, HVAC Exhaust Ventilation Fan with Low Noise for Basements, Bathrooms, Kitchens and Attics, Silver - Image 2](https://m.media-amazon.com/images/I/71G2JEIYo6L.jpg)
![VIVOSUN 4 Inch Inline Duct Fan 100 CFM, HVAC Exhaust Ventilation Fan with Low Noise for Basements, Bathrooms, Kitchens and Attics, Silver - Image 3](https://m.media-amazon.com/images/I/71HZveQ6E4L.jpg)
![VIVOSUN 4 Inch Inline Duct Fan 100 CFM, HVAC Exhaust Ventilation Fan with Low Noise for Basements, Bathrooms, Kitchens and Attics, Silver - Image 4](https://m.media-amazon.com/images/I/71fll2WqmxL.jpg)
![VIVOSUN 4 Inch Inline Duct Fan 100 CFM, HVAC Exhaust Ventilation Fan with Low Noise for Basements, Bathrooms, Kitchens and Attics, Silver - Image 5](https://m.media-amazon.com/images/I/61PA1My8FyL.jpg)

## Available Options

This product comes in different **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

### ⭐⭐⭐⭐⭐ Works
*by B***N on May 18, 2026*

Installing was easy, worked well this winter to keep our kitchen warm,noise wasn’t an issue

### ⭐⭐⭐⭐⭐ POWERFUL, especially for the low wattage. Love it. Won't buy cosmetically-marked-up fans again.
*by E***Y on July 22, 2021*

I don't care about plastic housings and I'm happy to wire my own switches where relevant, so for me and the applications for which I use fans (in this case, cooling inside my truck/paired with optional swamp cooler water flow), this is awesome bang for my buck. It's a bit loud but I don't care, that's to be expected when going for something with high airflow. I do wish I'd considered getting a couple of different sizes because this is actually more powerful than I need for its current use, but that's fine, sooner or later I'll move it and the attached swamp cooler setup I built to a different larger space and build a new smaller one for my truck. I'd much rather overengineer something than have it be insufficient (like my first pitiful swamp cooler attempt with computer case fans -- fun starter project to learn about wiring in series and wiring a three-prong switch, but totally inadequate for cooling the inside of a Ford Explorer!). So yeah, can't speak to how good this is for actual use in ducts, but as a cheap powerful basic fan for a DIYer doing something fan-related, it's a great buy and I'm thrilled I got it. The only way it could be more perfect would be if it had an on/off switch already integrated into the power cord, but that's not a big deal and of course it's not like it advertised/implied that it would have one. It's exactly what I expected, except more powerful. Everything about it seems solidly made and I anticipate it'll last a very long time. I'll most likely buy from this same manufacturer again in the future when I need fans of other sizes.

### ⭐⭐⭐⭐ Not strong enough to open my dampers
*by K***F on February 26, 2026*

The fans work fine, but because they are low CFM, they won't open my butterfly dampers. I had to step up to stronger fans. These aren't terribly noisy, so if you aren't using dampers that require air flow to open, they're a good, affordable choice.

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-06-04*