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Add an Accessory:
VIVOSUN 4 Inch Air Carbon Filter Smelliness Control with Australia Virgin Charcoal for Inline Fan, Grow Tent Smelliness Scrubber, Pre-Filter Included, Reversible Flange 4" x 12", Black
$39.99
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VIVOSUN Z4 4 Inch Inline Duct Fan, 203 CFM Ventilation Fan with Variable Speed Controller for Grow Tent, Indoor Garden Ventilation, Black

4.4 4.4 out of 5 stars 5,713 ratings
$69.99
FREE Returns
Z4 4 Inch
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Purchase options and add-ons

Brand VIVOSUN
Color Black
Electric fan design Blower
Power Source Corded Electric
Style 4'' with Speed Controller
Product Dimensions 9.3"D x 9.7"W x 4"H
Room Type Kitchen
Special Feature Lightweight
Recommended Uses For Product Lighting
Noise Level 49 dB
Controller Type
Button Control
Material
Metal
Number of Speeds
3
Included Components
Cord

About this item

  • Energy-Efficient Ventilation: This blower with a fan speed of 2500 RPM creates an air flow of 203 CFM; It combines the features of both axial and centrifugal fans to achieve optimal ventilation
  • Quiet Operation: The sturdy leather can reduce sound or vibration; Tight and precise construction eliminates rattling; The centrifugal impeller provides powerful airflow and has a low noise of 49 dB
  • Adjustable Speed: This centrifugal fan is equipped with a stepless speed controller to enable the fan to run at different speeds; You can adjust it to the desired airflow level
  • Easy to Install: This duct fan comes with a mounting bracket that the fan can be lifted by rope hangers; Quick installation and easy maintenance by simply removing the locking duct ends
  • Versatile Applications: Ideal for air cleaning and temperature control in industrial, home and garden planting ventilation applications

Customer ratings by feature

Easy to install
4.2 4.2
Suction power
4.2 4.2
Value for money
3.6 3.6
Sturdiness
3.5 3.5
See all reviews
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VIVOSUN Z4 4 Inch Inline Duct Fan, 203 CFM Ventilation Fan with Variable Speed Controller for Grow Tent, Indoor Garden Ventil
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VIVOSUN

VIVOSUN Z4 4 Inch Inline Duct Fan, 203 CFM Ventilation Fan with Variable Speed Controller for Grow Tent, Indoor Garden Ventilation, Black

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Product Description

1
6
3
4
5

More Choices

0

Z4 4 Inch Inline Fan

1

4 Inch Inline Fan

2

4 Inch Inline Fan Combo

3

4 Inch Inline Fan Combo

4

4 Inch Inline Fan Kit

5

4 Inch Inline Fan Combo

Customer Reviews
4.4 out of 5 stars
5,713
4.3 out of 5 stars
12,640
4.4 out of 5 stars
6,971
4.4 out of 5 stars
7,817
4.5 out of 5 stars
2,450
4.6 out of 5 stars
1,645
Price
$69.99 $29.99 $89.99 $119.99 $119.99 $129.99
Size
4 Inch 4 Inch 4 Inch 4 Inch 4 Inch 4 Inch
Material
Plastic Plastic Plastic; Metal Metal Plastic; Metal Plastic; Metal
Air Flow
203 CFM 195 CFM 190 CFM 203 CFM 190 CFM 190 CFM
Fan Speed
2500 RPM 2500 RPM 2300 RPM 2500 RPM 2300 RPM 2300 RPM
Noise Level
49 dB 30 dB 30 dB 49 dB 30 dB 30 dB
Features
Powerful Airflow; Low Noise Powerful Airflow; Low Noise Powerful Airflow; Low Noise Powerful Airflow; Good Filter Powerful Airflow; Low Noise Powerful Airflow; Low Noise

Looking for specific info?

From the brand

Previous page
  2. vivosun

    Who are we?

    VIVOSUN is the global leader for 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.

  3. LED Light
    4X AeroLight
    100W LED Grow Light Set
    AeroZesh S6 Inline Duct Fan

    LED Grow Light

    Visit the Store

  4. grow tent
    clip fan
    inline fan
    heat mat

    Grow Tent System

    Visit the Store

  5. garden cart
    COMPOSTER
    GROW BAG
    PRUNER

    Gardening

    Visit the Store

  6. 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.

Next page

Top Brand: VIVOSUN

Highly Rated
100K+ customers rate items from this brand highly
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VIVOSUN Z4 4 Inch Inline Duct Fan, 203 CFM Ventilation Fan with Variable Speed Controller for Grow Tent, Indoor Garden Ventilation, Black
VIVOSUN Z4 4 Inch Inline Duct Fan, 203 CFM Ventilation Fan with Variable Speed Controller for Grow Tent, Indoor Garden Ventilation, Black
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Price$69.99$33.99-26% $66.49
Typical: $89.99		$24.99$59.99$29.99
Delivery
Get it as soon as Monday, May 13
Get it as soon as Tuesday, May 14
Get it as soon as Monday, May 13
Get it as soon as Monday, May 13
Get it as soon as Monday, May 13
Get it as soon as Monday, May 13
Customer Ratings
4.44.4 out of 5 stars5,713
4.34.3 out of 5 stars230
4.54.5 out of 5 stars340
4.44.4 out of 5 stars697
4.74.7 out of 5 stars43
4.14.1 out of 5 stars49
Easy to install
4.2
4.8
4.8
4.7
5.0
4.3
Noise level
3.2
4.0
4.1
4.1
4.4
4.6
Suction power
4.2
3.7
4.3
4.4
—
3.7
Value for money
3.6
4.0
4.4
4.4
—
3.8
Sold By
VIVOSUN
Amazon.com
MARS HYDRO
HGinline
HGinline
Amazon.com
material
Metal
—
Acrylonitrile Butadiene Styrene
Plastic
Plastic
—
controller type
Button Control
Button Control
Button Control
Button Control
Button Control
—
wattage
68 watts
28 watts
30 watts
6 watts
—
—
voltage
5 volts
—
240 volts
240 volts
—
—
number of blades
—
—
10
10
10
5
blade length
4 inches
4 inches
—
—
—
4 inches
weight
7.73 pounds
2.73 pounds
5.6 pounds
—
1.88 kilograms
—

Customer reviews

4.4 out of 5 stars
4.4 out of 5
5,713 global ratings

Customers say

Customers like the value and air flow of the fan. They mention that it's cheap and does a good job of pulling air through the closet. They also like the performance, and smell. However, some customers have reported issues with the bearings going bad. Opinions are mixed on quality, noise, and speed.

AI-generated from the text of customer reviews

436 customers mention386 positive50 negative

Customers like the performance of the fan. They say it works well, has zero problems, and the wire work is what they'd expect. Some mention that the tent and filter did a great job. Overall, most are happy with the performance and recommend it to others.

"Used for airbrushing painting booth, works great, moves a lot of air (fumes). Lots of power, a bit noisy but not too bad...." Read more

"Been running a full year, nonstop, at about medium speed, zero problems. I have done no maintenance. It moves a lot of air...." Read more

"...Item worked perfectly and was very quiet given the amount of air it was pushing...." Read more

"Works great, not very loud, not the strongest but for it's price it's hard to beat...." Read more

160 customers mention122 positive38 negative

Customers like the value of the fan. They mention it's good for the value, cheaper than a home filter, and well worth the buy.

"...Hope this makes sense.Overall good fan for a good price." Read more

"...These are good for the value but the efficiency is not that great...." Read more

"...Overall the quality and price of this fan make it a great value and Vivosun has earned themselves a lifetime customer in me because their quality..." Read more

"...A tad pricey for what it does, but works very very well for it’s purpose...." Read more

158 customers mention120 positive38 negative

Customers like the air flow of the fan. For example, they say it moves a ton of air, does a very good job of pulling air through the closet, and provides all the ventilation they need. Some mention that the fan has double the volume of air.

"Used for airbrushing painting booth, works great, moves a lot of air (fumes). Lots of power, a bit noisy but not too bad...." Read more

"...I have done no maintenance. It moves a lot of air. It's kind of loud, but I can't compare loudness to other fans of the same size...." Read more

"...hot-in-the-summer and cold-in-the-winter room now has the best airflow in the house-- even airflow overkill for just one room...." Read more

"...The issues with the ventilation equipment have even left me soured on their name...." Read more

56 customers mention46 positive10 negative

Customers like the smell of the fan. For example, they mention it eliminates pesky smells, vents paint fumes, and keeps their family sniffle-free.

"...There was no smoke because it was able to pull it all out with the addition of the fan. The filter negated all of the smell. I was so happy...." Read more

"The fan is nice for removing scent. The carbon filter did it's job. When I first got this fan, it did very well...." Read more

"...to use with our laser engraver - definitely works great and keeps the burning smell down" Read more

"...airflow for my plants in a very positive way as well as eliminating ANY odors...." Read more

607 customers mention221 positive386 negative

Customers have mixed opinions about the noise produced by the fan. Some mention that it moves a lot of air and is as quiet as expected, while others say that it's really noisy and vibrates on all but the lowest settings, making a loud rattling noise. Some customers also mention that the bearing issues cause noxious sound issues. Overall, the opinions are mixed, and it'd be best to read the reviews carefully before making a purchase.

"...Lots of power, a bit noisy but not too bad. Use it quite a bit, heavy duty, good quality." Read more

"used it in my crawlspace to pull air, works well and is quiet" Read more

"...I have done no maintenance. It moves a lot of air. It's kind of loud, but I can't compare loudness to other fans of the same size...." Read more

"...The noise isn't constantly present but is rhythmic (obviously) seeming to get worse over time (again obviously) Still no regrets with the purchase..." Read more

422 customers mention245 positive177 negative

Customers are mixed about the quality of the fan. Some mention it's very strong, durable, and quiet. However, some say it'll come apart and send pieces everywhere.

"...Lots of power, a bit noisy but not too bad. Use it quite a bit, heavy duty, good quality." Read more

"Works great, not very loud, not the strongest but for it's price it's hard to beat...." Read more

"...definitely an extremely durable product and im very very happy with it.as for performance; it moves a ton of air...." Read more

"It is a good ventilation fan for my lasers. My biggest gripe about it it connecting the hoses...." Read more

110 customers mention65 positive45 negative

Customers are mixed about the speed of the fan. Some mention that the speed adjustment makes it perfect, has a wide range of speed, and is convenient. Others say that the control is almost useless, the fan is not speed adjustable, and doesn't have a soft start. The blower is high velocity so it can vibrate quite a bit.

"...Yeah, it won't blow slowly. This fan is no wimp!The fan is well balanced and lubricated and runs very quietly...." Read more

"Not as powerful as Im us to using another brand, air filter no so good" Read more

"Very strong fan and connects well to 8" duct work. Variable speed control works well...." Read more

"...It's nice and quiet, lots of CFM flow and the adjustable fan speed which includes an off switch is so much better than the older on/off fan..." Read more

63 customers mention0 positive63 negative

Customers are dissatisfied with the bearings of the fan. They mention that they started to go bad, making a weird loud noise. Some say that the bearing in the motor is going out.

"...So why four stars? Well I was happy with the unit prior to the presumed bearing issue, and I had a good customer service experience...." Read more

"...sound every few seconds, I'm assuming this is the ball bearings beginning to crap out...." Read more

"...The bearings on the motor main shaft failed. I ordered a backup from another source so my crop didn’t fail but this fan is completely unreliable...." Read more

"...with a low to medium resistance on the fan and the bearing in the motor is going out...." Read more

Its not new...
4 Stars
Its not new...
There is visible damage on the unit, the black paint inside the unit is chipped and scratched, and the speed controller on the cord has white scuffs on it like it was knocked against something white several times, but it turns on, so i'll see how it goes, but this is a used product for sure.
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Top reviews from the United States

Dave
5.0 out of 5 stars Used for painting booth
Reviewed in the United States on January 1, 2024
Verified Purchase
Used for airbrushing painting booth, works great, moves a lot of air (fumes). Lots of power, a bit noisy but not too bad. Use it quite a bit, heavy duty, good quality.
Helpful
 Report
B. Quinn
5.0 out of 5 stars 8-inch version running 1 year no issues
Reviewed in the United States on July 3, 2022
Size: Z8 8 InchVerified Purchase
Been running a full year, nonstop, at about medium speed, zero problems. I have done no maintenance. It moves a lot of air. It's kind of loud, but I can't compare loudness to other fans of the same size. When it was in my living room it was too loud. It's in my bedroom now not far from my bed and that doesn't bother me.

I am mining in a grow tent in a small 1br apartment and this ventilation solution has allowed me to max out my apartment electrical grid and keep quite an oversized (for my living situation) mining operation going. I have a smaller intake fan by the same brand, a different model, and with the two fans I circulate the outside air through my tent (both intake and exhaust tubes hang out the window), so that it does not affect the air pressure in my apartment.

It was really drafty when I was either sucking air in, or blowing it out. I thought I was getting the Korean Fan Death, my mouth would be soooooooo dried out every morning because my bedroom had like low air pressure. So keep in mind if you are exhausting hot air outdoors, that creates an air pressure gradient with other impacts.

I built an audio dampening box out of foam and wood to enclose the tent with the fan in it, and it helped, but was only maybe necessary. Hope this helps!
6 people found this helpful
Helpful
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Kai
4.0 out of 5 stars Great value with minor issue
Reviewed in the United States on January 21, 2021
Verified Purchase
I decided to buy a less than new (read "good") item as it was sold and shipped from amazon and the description stated light cosmetic issues less than an inch on the outside in it's original packaging for fifteen dollars cheaper than brand new. The item came exactly as described and to my surprise actually had no actual damage on the product itself but the original packaging was slightly damaged and I think Amazon was just trying to cover themselves just in case. Item worked perfectly and was very quiet given the amount of air it was pushing. I use it for my spray booth to pull toxic fumes as well as organic material from overspray and it does what I need beautifully. The only gripe to mention is I did experience the so called noise that came after about an hour of breaking in. It is a soft knock obviously from a blade that probably wasn't machined exactly perfect that I'll probably try to fix st some point. The noise isn't constantly present but is rhythmic (obviously) seeming to get worse over time (again obviously) Still no regrets with the purchase and recommend.
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firrox
5.0 out of 5 stars A solid year of use no problem
Reviewed in the United States on August 27, 2023
Size: Z4 4 InchVerified Purchase
Works great, not very loud, not the strongest but for it's price it's hard to beat. Had it in a tent for a year and a half and still use it during hot months and no problems over 3 years later
3 people found this helpful
Helpful
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David Stagg
5.0 out of 5 stars This fan sucks... in a good way
Reviewed in the United States on February 25, 2024
Size: Z6 6 InchVerified Purchase
used it in my crawlspace to pull air, works well and is quiet
Helpful
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Regular folk
5.0 out of 5 stars Strong and quiet-- and GREAT customer service
Reviewed in the United States on December 1, 2018
Size: Z6 6 InchVerified Purchase
We had a 2nd floor room in our century-old house that had only a faint breeze coming from its vent via 6" flexible duct tube that was routed down through an old chimney to the basement where there was only a short distance between the main duct from the furnace/HVAC and the hole in the chimney. Consequently, longer inline fans were not an option. After installing the Vivosun 6" fan, that previously hot-in-the-summer and cold-in-the-winter room now has the best airflow in the house-- even airflow overkill for just one room.
The variable speed controller on the fan allows you to adjust from super fast all the way down to very fast. Yeah, it won't blow slowly. This fan is no wimp!
The fan is well balanced and lubricated and runs very quietly. About the only noise is from the wind that the fan creates, which is to be expected and is unavoidable. The motor itself is just about silent.
UPDATE: January 15, 2020. After using it for a year and a half, it started to squeak and then make a rubbing sound. I contacted Vivosun and asked if there were any lubricants that they recommended or would advise against. They refunded my purchase price (!) and said that purchasing a new one from Amazon would be faster than servicing it. This is well past any warranty time and WAY ABOVE AND BEYOND any expected customer service! Excellent service!
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Top reviews from other countries

Robert Knight
5.0 out of 5 stars Great fan and filter combo
Reviewed in Canada on November 3, 2023
Verified Purchase
I bought this awhile ago and needed to test this out before a review... Over all has great airflow and is loud but what fan isnt lol... Does a great job. Had it going non stop for awhile and it keeps going... Very good product and would recommend this for sure
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Jay
5.0 out of 5 stars Powerful and Quiet
Reviewed in Canada on January 25, 2020
Verified Purchase
I've been using this fan in a 4x4 tent and it is working perfectly for my needs and expectations. It is very powerful fan, but it is surprisingly quiet. I should note that I suspended the fan using zip ties to eliminate vibration noise. From holding this unit you can tell it is not a cheaply made fan. I
Am happy with the quality; It has some weight and isn't made out of plastic. The inlet and outlet were easy to connect aluminum ducting to. The screws to attach the fan to the mounting bracket were a bit tough to reach while holding the fan but it still only took me a few minutes to complete. I am happy with this purchase and I am hoping for several years use out of this fan.
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Jay
5.0 out of 5 stars Powerful and Quiet
Reviewed in Canada on January 25, 2020
I've been using this fan in a 4x4 tent and it is working perfectly for my needs and expectations. It is very powerful fan, but it is surprisingly quiet. I should note that I suspended the fan using zip ties to eliminate vibration noise. From holding this unit you can tell it is not a cheaply made fan. I
Am happy with the quality; It has some weight and isn't made out of plastic. The inlet and outlet were easy to connect aluminum ducting to. The screws to attach the fan to the mounting bracket were a bit tough to reach while holding the fan but it still only took me a few minutes to complete. I am happy with this purchase and I am hoping for several years use out of this fan.
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4 people found this helpful
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Tabitha
5.0 out of 5 stars Great VAlue
Reviewed in Canada on January 20, 2020
Verified Purchase
This kit is unbeatable for price! The fan is a bit more noisy then expected but over all happy with my purchase.
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Brian M.
5.0 out of 5 stars Great Company..
Reviewed in Canada on January 20, 2020
Size: Z8 8 InchVerified Purchase
Vivosun - where to begin.. spent over 700 dollars on there products. Had an issue with the 8 inch fan knocking noise. Vivosun refunded the money immediately after reporting the issue. Bought another one and works perfect. Company is top notch.. love all the products and will continue to purchase.

Excellent customer service...
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The_Growing_Shrink 😎🌱💚
5.0 out of 5 stars My “Vivosun Stack” Solution: Portable Odour Control!
Reviewed in Canada on August 11, 2019
Verified Purchase
I just received from Vivosun: (1) 8”
Noise Silencer, (2) 8” Inline Fan with Variable Control, and (3) 8” Carbon Filter.

Although they will soon be installed in my indoor garden, I decided to try simply stacking them (no clamps or tape!) to use in my living area to control odours related to trimming fresh plant material. Wowwwww! I am so impressed!! The “stack” is very stable standing with no support, and the 3-4” clearance at the top allows fresh, clean air to be distributed widely throughout the living space.

The Noise Reducer is light and highly effective: Standing 1-2 feet from the “stack” while working, I was still able to hear the TV in the distance with ease. I have just purchased several for use in the garden ventilation system. Great find!

The variable speed controller on the this solid, well-built and designed fan is a great feature. Even at max warp speed, it was comfortable to work around. And smell?? What smell?! NONE! The carbon filter sure does it’s job!

For me, my “Vivosun Stack” is a real game changer for PORTABLE air circulation and odour control! 😎💪🙏💚
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The_Growing_Shrink 😎🌱💚
5.0 out of 5 stars My “Vivosun Stack” Solution: Portable Odour Control!
Reviewed in Canada on August 11, 2019
I just received from Vivosun: (1) 8”
Noise Silencer, (2) 8” Inline Fan with Variable Control, and (3) 8” Carbon Filter.

Although they will soon be installed in my indoor garden, I decided to try simply stacking them (no clamps or tape!) to use in my living area to control odours related to trimming fresh plant material. Wowwwww! I am so impressed!! The “stack” is very stable standing with no support, and the 3-4” clearance at the top allows fresh, clean air to be distributed widely throughout the living space.

The Noise Reducer is light and highly effective: Standing 1-2 feet from the “stack” while working, I was still able to hear the TV in the distance with ease. I have just purchased several for use in the garden ventilation system. Great find!

The variable speed controller on the this solid, well-built and designed fan is a great feature. Even at max warp speed, it was comfortable to work around. And smell?? What smell?! NONE! The carbon filter sure does it’s job!

For me, my “Vivosun Stack” is a real game changer for PORTABLE air circulation and odour control! 😎💪🙏💚
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2 people found this helpful
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