---
product_id: 37331937
title: "VIVOSUN D4 4 Inch 195 CFM Inline Duct Ventilation Fan, HVAC Vent Blower for Grow Tent, Attic, Basements or Kitchen, Hydroponics Exhaust Booster Fan"
brand: "vivosun"
price: "HK$650"
currency: HKD
in_stock: true
reviews_count: 13
category: "Vivosun"
url: https://www.desertcart.hk/products/37331937-vivosun-d4-4-inch-195-cfm-inline-duct-ventilation-fan
store_origin: HK
region: Hong Kong
---

# 195 CFM airflow 30 dB ultra-quiet ETL-listed auto-reset motor VIVOSUN D4 4 Inch 195 CFM Inline Duct Ventilation Fan, HVAC Vent Blower for Grow Tent, Attic, Basements or Kitchen, Hydroponics Exhaust Booster Fan

**Brand:** vivosun
**Price:** HK$650
**Availability:** ✅ In Stock

## Summary

> 💨 Elevate your airflow game—cool smarter, not harder!

## Quick Answers

- **What is this?** VIVOSUN D4 4 Inch 195 CFM Inline Duct Ventilation Fan, HVAC Vent Blower for Grow Tent, Attic, Basements or Kitchen, Hydroponics Exhaust Booster Fan by vivosun
- **How much does it cost?** HK$650 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/37331937-vivosun-d4-4-inch-195-cfm-inline-duct-ventilation-fan)

## 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

- • **Safety-First Design:** ETL-certified motor with automatic reset and flame-retardant housing for peace of mind.
- • **Turbocharged Airflow:** Powerful 195 CFM moves air fast to keep your space fresh and cool.
- • **Whisper-Quiet Operation:** Engineered with flow deflector to minimize noise at just 30 dB—work or grow without distractions.
- • **Versatile Climate Control:** Perfect for grow tents, basements, kitchens, or gaming rigs—control humidity, odors, and temperature like a pro.
- • **Effortless Setup & Maintenance:** Plug-and-play with locking tabs and detachable blades for quick cleaning and hassle-free installation.

## Overview

The VIVOSUN D4 4 Inch Inline Duct Fan delivers a robust 195 CFM airflow at 2500 RPM while maintaining whisper-quiet operation at 30 dB. Its ETL-listed motor features an automatic reset for safety, and the flame-retardant housing ensures fire protection. Designed for easy installation with locking tabs and a 5.9-foot cord, this lightweight fan excels in ventilating grow tents, basements, kitchens, and even gaming setups, optimizing air quality, temperature, and humidity control.

## Description

desertcart.com: VIVOSUN D4 4 Inch 195 CFM Inline Duct Ventilation Fan, HVAC Vent Blower for Grow Tent, Attic, Basements or Kitchen, Hydroponics Exhaust Booster Fan : Patio, Lawn & Garden

Review: Pulls out the large video card heat - In making this next generation gaming computer, with an 8 gig Radeon video card among other things, the blowing or ambient heat from the computer is enough to heat a small room. I can & have used it in the winter to do that. Well, I was running something, & it was on over night. In the summer, I want to expel this heat so I can stand to be in there, gaming. Trying to get the right CFM to noise ratio can be difficult in a computer environment, in a small room. Mainly home based. This extractor from VivoSun is a great one. It's not quiet, & sometimes I can't wait to turn it off, but it pulls out the heat like I want it to, well, enough to keep the temps nice. Generally, the CPU's radiator will get up to about 107°F-113°F (42-45°C ) with this 195 CFM fan bringing it to (32°C-37°C) 89.6°F-98.6°F & it's pulling most of that heat out the window. I included a snap of some general video editing temps with out the VivoSun, & the bottom one is after it got going. The temps dropped in about a minute, which is super fast! When I "forget" to turn it on, & the computer gets up to about 45°C, it takes the exhaust about eight odd minutes to bring it down to 35°C & about a full 10 minutes to level off at 33°F. So that's not bad really. I have tried a small CFM unit (106 CFM), but the pull just wasn't there. I have included a video so you can hear how it sounds. Of course, it's muffled a bit, being I captured it from my phone, & recordings always sound different than your ear. If I can, I'll try to include a video of the room's cooling turbo fan so you can hear them both. Not bad, but not whisper quiet. They don't claim to be, either, so nothing on them. If I bring the tower down to the floor, or move it away, that will change things a whole bunch. If you're thinking about adding an external cooler to your gaming/video unit, I strongly suggest VivoSun. The product works great, & they are on top of any blips you may have. In fact, they helped me upgrade to this unit with a matter of an e-mail. That's AWESOMENESS to the 10th! Now I don't have to "worry" about leaving the computer on for a bit while I'm in the middle of a game, or when I step away for a moment. I know that this exhaust fan is going to keep the system cool. Bottom line, this exhaust fan works very well sealed to my tower's top fan port. So much that I will be adding a smaller one to my 3D printer to better help regulate the temps in that case. I did need to purchase dryer duct (hose), & a 4" inlet pipe. The aluminum tape & clamps came with the dryer ducting. I used some sticky sound dampening on the I/O exit panel to better direct the air flow being pulled up & out. Also, it has holes in the "feet" for more secure mounting. I just hot glued it.
Review: Easy to use, plenty of air flow. - This blower was easy to connect up to 4” vent hose. Plenty of air and fairly quiet.

## Features

- Powerful Airflow: This powerful blower with a fan speed of 2500 RPM can create an airflow of 195 CFM; It works efficiently in ventilating grow tents, transferring heat or cool rooms, circulating fresh air, as well as controlling proper humidity, temperature, and air quality for your grow area
- Quiet Operation: Fitted with a flow deflector that concentrates the fan stream and cuts turbulent kinetic energy to reduce sound output to just 30 dB, which does not have any harm to your health and will not disturb your work
- Safety Protection: The motor is ETL listed and features an automatic reset function to prevent overheating or other safety issues; The electrical junction box is made from flame-retardant components for fireproofing
- Simple Hookup: The flanges on both the intake and exhaust ends are simple to assemble with the vent hose by locking tabs; A cord of 5.9-feet long for hassle-free setup; The housing, even the impeller and blades, are easy to detach for cleaning and maintenance
- Wide Applications: It can improve airflow to reduce humidity, block odors, and lower temperatures in grow rooms, basements, or kitchens

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01M7S46YZ |
| Air Flow Capacity | 200 Cubic Feet Per Minute |
| Best Sellers Rank | #7,404 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #12 in Greenhouse Ventilation Equipment |
| Blade Length | 4 Inches |
| Blade Material | Plastic |
| Brand | VIVOSUN |
| Brand Name | VIVOSUN |
| Cable Length | 5.9 Feet |
| Collection Name | Inline Duct Fans |
| Color | Black |
| Control Method | App |
| Controller Type | Button Control |
| Customer Reviews | 4.3 out of 5 stars 13,578 Reviews |
| Electric Fan Design | Blower |
| Electric fan design | Blower |
| Finish Type | Oil Rubbed |
| Included Components | Cord |
| Indoor Outdoor Usage | Indoor |
| Installation Type | plug-and-play |
| Is Electric | Yes |
| Is Product Cordless | No |
| Item Dimensions D x W x H | 7"D x 7.3"W x 6.7"H |
| Item Weight | 2.5 Pounds |
| Manufacturer | VIVOSUN |
| Material | Plastic |
| Model Name | VIVOSUN Inline Fan |
| Model Number | GDFPA-100 |
| Motor Type | brushless |
| Mounting Type | Wall Mount |
| Noise Level | 42 Decibels |
| Number of Blades | 3 |
| Number of Power Levels | 1 |
| Number of Speeds | 1 |
| Part Number | GDFPA-100 |
| Power Source | Corded Electric |
| Product Dimensions | 7"D x 7.3"W x 6.7"H |
| Recommended Uses For Product | Ventilating |
| Room Type | Kitchen |
| Size | 4 Inch |
| Smart Home Compatibility | Not Smart Home Compatible |
| Special Features | Lightweight |
| Specification Met | ETL |
| Speed | 2500 RPM |
| Standby Power Shutoff | High Efficiency |
| Style | Basic |
| Switch Type | Toggle |
| UPC | 714119465567 |
| Unit Count | 1.0 Count |
| Voltage | 120 Volts |
| Warranty Description | Manufacturer Warranty for 360 days from date of purchase. |
| Wattage | 28 watts |

## Product Details

- **Brand:** VIVOSUN
- **Color:** Black
- **Electric fan design:** Blower
- **Mounting Type:** Wall Mount
- **Power Source:** Corded Electric
- **Product Dimensions:** 7"D x 7.3"W x 6.7"H
- **Recommended Uses For Product:** Ventilating
- **Room Type:** Kitchen
- **Special Feature:** Lightweight
- **Style:** Basic

## Images

![VIVOSUN D4 4 Inch 195 CFM Inline Duct Ventilation Fan, HVAC Vent Blower for Grow Tent, Attic, Basements or Kitchen, Hydroponics Exhaust Booster Fan - Image 1](https://m.media-amazon.com/images/I/61qBBAYmZeL.jpg)

## Available Options

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

## Questions & Answers

**Q: Is my fan defective? For such a small fan it is extremely loud.**
A: Use light weight clipper oil on the moter behind fan blades, also use tape to hold to pieces together after twisting back together. I own three need to add oil to all. All have been running non stop for over 6 months.

**Q: Can you attach a variable speed controller to this**
A: You can, however, with just 200 CFM of air movement you may want to just keep it on full. The motor will make more humming noise if you use a speed controller to decrease speed.  I found it makes less noise on full than it does if you decrease the speed which increases motor hum noise considerably.

**Q: If i use this fan as my exhaust fan for my 3ft×3ft×6ft grow tent, and use the cheaper less powerful 100cfm as an inline fan would that suffice?**
A: Hey man i dont know where you live? But im in new england and heat is usaully temporary problem for a few months. But the 4 in didnt cut it i ended up buying the 6 inch kit with carbon filter and still have the 4 inch. This year is brutal and glad i switched in april. Honestly i would get the 6 or even the 8 with adjustable speed. I struggled to justify the costs myself but its gonna save money down the line and You  will have room for lose of efficency with bends and dirty blades. But hey everyone journey is different. Its just cheaper to go bigger then at the minimum CFM or btu or any hvac project. It wont work as hard and run hard at 100% power

**Q: Does this have a brushless motor? Need to minimize spark chances internally.**
A: Yes it has a brushless motor

## Customer Reviews

### ⭐⭐⭐⭐⭐ Pulls out the large video card heat
*by F***R on August 31, 2021*

In making this next generation gaming computer, with an 8 gig Radeon video card among other things, the blowing or ambient heat from the computer is enough to heat a small room. I can & have used it in the winter to do that. Well, I was running something, & it was on over night. In the summer, I want to expel this heat so I can stand to be in there, gaming. Trying to get the right CFM to noise ratio can be difficult in a computer environment, in a small room. Mainly home based. This extractor from VivoSun is a great one. It's not quiet, & sometimes I can't wait to turn it off, but it pulls out the heat like I want it to, well, enough to keep the temps nice. Generally, the CPU's radiator will get up to about 107°F-113°F (42-45°C ) with this 195 CFM fan bringing it to (32°C-37°C) 89.6°F-98.6°F & it's pulling most of that heat out the window. I included a snap of some general video editing temps with out the VivoSun, & the bottom one is after it got going. The temps dropped in about a minute, which is super fast! When I "forget" to turn it on, & the computer gets up to about 45°C, it takes the exhaust about eight odd minutes to bring it down to 35°C & about a full 10 minutes to level off at 33°F. So that's not bad really. I have tried a small CFM unit (106 CFM), but the pull just wasn't there. I have included a video so you can hear how it sounds. Of course, it's muffled a bit, being I captured it from my phone, & recordings always sound different than your ear. If I can, I'll try to include a video of the room's cooling turbo fan so you can hear them both. Not bad, but not whisper quiet. They don't claim to be, either, so nothing on them. If I bring the tower down to the floor, or move it away, that will change things a whole bunch. If you're thinking about adding an external cooler to your gaming/video unit, I strongly suggest VivoSun. The product works great, & they are on top of any blips you may have. In fact, they helped me upgrade to this unit with a matter of an e-mail. That's AWESOMENESS to the 10th! Now I don't have to "worry" about leaving the computer on for a bit while I'm in the middle of a game, or when I step away for a moment. I know that this exhaust fan is going to keep the system cool. Bottom line, this exhaust fan works very well sealed to my tower's top fan port. So much that I will be adding a smaller one to my 3D printer to better help regulate the temps in that case. I did need to purchase dryer duct (hose), & a 4" inlet pipe. The aluminum tape & clamps came with the dryer ducting. I used some sticky sound dampening on the I/O exit panel to better direct the air flow being pulled up & out. Also, it has holes in the "feet" for more secure mounting. I just hot glued it.

### ⭐⭐⭐⭐⭐ Easy to use, plenty of air flow.
*by B***M on May 17, 2026*

This blower was easy to connect up to 4” vent hose. Plenty of air and fairly quiet.

### ⭐⭐⭐⭐ Great value
*by J***. on August 31, 2019*

Very nice little fan. Very quiet and moves air as advertised. Only reason I didn’t give 5 stars overall is because when I got fan the blades were hitting the casing causing it to make a terrible noise so I took it apart to investigate. You twist the casing and they separate them the blade and inner workings are exposed. Everything was tight like it should have been so I noticed that the casing tightened down a little too much when fully twisted together, then I backed it off very slightly and fixed the problem completely. Shroud was still locked in place as it should have been but I put a piece of duct tape on it to hold it from tightening itself up during use. Very simple fix and have been very pleased with its performance every since. I have 2 of these fans and will buy 2 more very soon. I own several different products from this company and have always had good results with them. Update 7/23/21. Recently purchased 3 more of these fans. Can’t beat them for the money. They work very well and are super quiet.

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-07-19*