---
product_id: 30245394
title: "4\" Metal Inline Fan 100 CFM, Exhaust Fan for Home Ventilation"
brand: "vivosun"
price: "$67.25"
currency: USD
in_stock: true
category: "Vivosun"
url: https://www.desertcart.us/products/30245394-4-metal-inline-fan-100-cfm-exhaust-fan-for-home
store_origin: US
region: United States of America
---

# 100 CFM airflow <30 dB ultra-quiet 2930 RPM brushless motor 4" Metal Inline Fan 100 CFM, Exhaust Fan for Home Ventilation

**Brand:** vivosun
**Price:** $67.25
**Availability:** ✅ In Stock

## Summary

> 💨 Elevate your air game—quiet power that fits anywhere!

## Quick Answers

- **What is this?** 4" Metal Inline Fan 100 CFM, Exhaust Fan for Home Ventilation by vivosun
- **How much does it cost?** $67.25 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/30245394-4-metal-inline-fan-100-cfm-exhaust-fan-for-home)

## 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

- • **Durable Metal Build:** Crafted from corrosion-resistant metal with a brushless motor for long-lasting, maintenance-free reliability.
- • **Versatile Installation:** Easily mounts in bathrooms, kitchens, basements, attics, or grow rooms to optimize ventilation wherever you need it.
- • **Whisper-Quiet Operation:** Operates below 30 dB, ensuring your workspace or home stays peaceful and distraction-free.
- • **Powerful & Compact Airflow:** Delivers a robust 100 CFM in a sleek 4-inch design—perfect for tight spaces without sacrificing performance.
- • **Energy-Efficient & Low Maintenance:** Consumes just 14W with permanently lubricated bearings—saving energy and hassle over time.

## Overview

The VIVOSUN 4" Metal Inline Fan offers a powerful 100 CFM airflow with a quiet, brushless motor running at 2930 RPM. Its durable, corrosion-resistant metal construction ensures longevity, while the compact design fits seamlessly into tight spaces like bathrooms, basements, and kitchens. Operating at less than 30 dB, it provides efficient ventilation without noise disruption, making it ideal for professional and home environments alike.

## Description

VIVOSUN 4" Metal Inline Fan 100 CFM, Exhaust Fan for Home Ventilation | Low Noise HVAC Fan for Basements, Bathrooms, Kitchens and Attics, Non-variable speed - desertcart.com

## 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: With flexible & mountable design, so 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 cfm |
| Best Sellers Rank | #27,187 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #82 in Household Ventilation Fans |
| Blade Length | 4 inches |
| Blade Material | Plastic |
| 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 4.2 out of 5 stars (7,049) |
| Electric Fan Design | Exhaust Fan |
| Finish Type | Painted |
| Included Components | Cord |
| Indoor Outdoor Usage | Indoor |
| Installation Type | built-in |
| Item Dimensions D x W x H | 4"D x 7"W x 4"H |
| Item Weight | 1.7 pounds |
| Manufacturer | VIVOSUN |
| Material | Metal |
| Model Name | vivosun |
| Model Number | 331101-4 |
| Motor Type | Brushless |
| Mounting Type | Duct Mount |
| Noise Level | 30 db |
| Number of Blades | 3 |
| Number of Packs | 1 |
| Number of Power Levels | 1 |
| Number of Speeds | 3 |
| Part Number | CECOMINOD070342 |
| Power Source | Electric |
| Recommended Uses For Product | Basements |
| Room Type | Bathroom |
| Size | 4"& No Speed Controller |
| Special Features | Lightweight, Portable |
| Speed | 2930 rpm |
| Style | Modern |
| Switch Type | Push Button |
| UPC | 714119466250 |
| Unit Count | 1 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

![4" Metal Inline Fan 100 CFM, Exhaust Fan for Home Ventilation - Image 1](https://m.media-amazon.com/images/I/71TW4VUEXiL.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.

## Frequently Bought Together

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-08-18*