







💨 Boost your airflow, not your noise — ventilation that works as hard as you do!
The VIVOSUN Inline Booster Duct Fan is a compact, high-performance ventilation solution featuring a powerful 430 CFM airflow at 3000 RPM. Designed with a durable steel housing and a permanently lubricated motor for quiet, maintenance-free operation under 43 dB, it includes an adjustable speed controller for precise airflow management. Ideal for basements, bathrooms, kitchens, attics, and grow tents, this fan enhances HVAC efficiency while fitting easily into tight spaces.















| ASIN | B0BVPYH3WM |
| Air Flow Capacity | 430 Cubic Feet Per Minute |
| Best Sellers Rank | #166,749 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #876 in Household Ventilation Fans |
| Blade Material | Plastic |
| Brand Name | VIVOSUN |
| Collection Name | Duct Fans |
| Color | Black |
| Control Method | App |
| Controller Type | Button Control |
| Customer Reviews | 4.2 4.2 out of 5 stars (577) |
| Electric Fan Design | Exhaust Fan |
| 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 | 7.9"D x 7.9"W x 7.2"H |
| Item Type Name | Inline Duct Fan with Speed Controller |
| Manufacturer | VIVOSUN |
| Material | Metal |
| Model Name | VSV-IFB8 |
| Model Number | VSV-IFB8 |
| Mounting Type | Wall Mount |
| Noise Level | 43 Decibels |
| Number of Power Levels | 2 |
| Power Source | ac |
| Recommended Uses For Product | Exhausting |
| Room Type | Bathroom |
| Special Features | Low Noise |
| Speed | 3000 RPM |
| Standby Power Shutoff | High airflow, low noise, and sturdy construction |
| Style | Adjustable Speed |
| Unit Count | 1.0 Count |
| Voltage | 120 Volts |
| Wattage | 40 watts |
C**.
An absolute must have for auto cooling
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.
M**S
This Is worth it in every aspect
This exhaust fan works great. I have had it and tested it for over a month now. It is very quiet, I wish bathroom motors were this quiet, next the power dial also controls the speed of the fan. the fan speed is completely adjustable this is a HUGE bonus. Most air duct exhaust fans are either on or off, this one has fan speed control. It hooks up pretty easy the length of the cord is about 6 feet which is good. The on off switch is the dial, so the only negative is the switch position. I wish the switch was closer to the outlet and further away from the actual inline booster module.
J**.
Good fan, okay control
Ive bought several of these, they work well and move air but some of the controls die after a few days of continuous use. If hardwiring the fans work great
B**N
Bought this for a wood kiln. Works great
Great little fan
M**.
Great IN-Line fan!
Vivosun is a great company to deal with. Awesome customer support. I installed this in my dryer exhaust line and it has sped up my dry time. Fan runs quiet and every efficient. Can’t go wrong with this product.
D**Y
The fan operation is not as described, the unit is defective.
The first fan ordered did not work as it should - when turning the controller knob, there is a humming noise like a voltage transformer and the blades hardly move. Then suddenly in some position the fan turns on at full power and makes quite a lot of noise, about 28 decibels - it's nothing. Turning the regulator knob to maximum turns the fan off. I thought I had gotten a defective fan and decided to replace it with another one of the same kind, so to speak, to give the company a chance. However, the second one has exactly the same problem. Too bad, the window insert for the 4” vent from this company is quality, no complaints.
T**!
Decent fan but not great.
Overall it does its intended purpose. But I feel like it doesnt move as much air as I would have thought. Also the adjuster knob barely adjusts. The difference between barely on and full blast is pretty negligible.
W**Y
Great fan!
Awesome little inline fan. Used two years so far without an issue
A**L
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.
K**N
We are using this in our sauna wall to vent out and it works great, moves a good amount of air and is quiet.
K**M
Llegó en mal estado, su forma es redonda y llegó ovalado...
C**R
A mi me funciona como "inyector" de aire a la carpa y complemento con un extractor en la parte superior. Funciona mejor para ventilar y no para extraer. Ventajas es que tiene 2 niveles de operación, es ligero y puedes colgarlo. Puede adaptarse un tubo e inyectar aire a la carpa o puedes ponerlo directo en la entrada de la carpa si tienes las entradas con el tamaño adecuado. Fíjate bien antes de comprar que diámetro tienen tus entradas de aire. Estaría muy bien que incluyeran algún tipo de colgante o abrazaderas. Por lo demás cumple
J**L
No soporta el calor
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