Best In Line Vent Fans In July 2024

Looking for some of the Best In Line Vent Fans? As you may know, there are dozens of similar products out there and some come with vastly different price tags. Let us help you out here – we have handpicked for you the Best In Line Vent Fans.

To help you in your search, we have completed this list of the Best In Line Vent Fans.

Top Rated Best In Line Vent Fans Of 2024

Rank	Product Name	Score
1	VIVOSUN 4 inch Inline Duct Fan 100 CFM, HVAC Exhaust Intake Fan, Low Buy Now	9.7 Buy Now
2	iPower 4 Inch 100 CFM Booster Fan Inline Duct Vent Blower with Variable Buy Now	9.5 Buy Now
3	iPower GLFANXCONTROL Exhaust Variable Speed Adjuster for Duct Inline Fan Vent Blower, HVAC Buy Now	9.1 Buy Now
4	iPower GLFANXBOOSTER4X2 2-Pack 4 Inch 100 CFM Booster Fan Inline Duct Vent Blower Buy Now	8.8 Buy Now
5	VIVOHOME 4 Inch 195CFM Plastic Round Exhaust Inline Duct Fan for Hydroponics Grow Buy Now	8.6 Buy Now
6	VIVOSUN 6 Inch 440 CFM Inline Duct Fan Vent Blower Ventilation Fan Buy Now	8.3 Buy Now
7	Tjernlund M-6 Inline Duct Booster Fan, Hydroponic Blower Heat Air Conditioning Vent Exhaust Buy Now	8.1 Buy Now
8	TOPHORT 4 Inch Inline Duct Fan 190 CFM Blower Fan with Variable Speed Buy Now	7.8 Buy Now
9	AC Infinity CLOUDLINE S4, Quiet 4” Inline Duct Fan with Speed Controller Buy Now	7.5 Buy Now
10	AC Infinity CLOUDLINE T4, Quiet 4” Inline Duct Fan with Temperature Humidity Controller Buy Now	7.2 Buy Now

1. VIVOSUN 4 inch Inline Duct Fan 100 CFM, HVAC Exhaust Intake Fan, Low

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9.7/10 our score

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Specs.: diameter 4 inch, speed 2930 rpm, air flow 100 cfm, voltage 110/120v, power 12w
Upgraded advantages: superior balanced blades for long service life & quiet operation, motor features a permanently lubricated bearing that operates quietly and requires no maintenance, portable and lightweight, sufficient 5.5' grounded power cord
Household applications: help to boost airflow in hvac units to remove exhausts and odors from bathrooms & workshops and ventilate basements & attics, etc.
Grow room applications: used as intake fan to bring fresh air into grow rooms, also used as exhaust fan in smaller setups with leds or lights under 400w.
Note: max operating temp of motor is 130 / 266, max ambient temp is 60 / 140. if any other materials/particles get into the duct fan and get the blade stuck, users are to turn off the power immediately, clean it up, turn the power back on when handled properly.

2. iPower 4 Inch 100 CFM Booster Fan Inline Duct Vent Blower with Variable

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9.5/10 our score

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Diameter: 4 inch, air flow: 100 cfm, speed: 2930 rpm, voltage: 110/120v, wattage: 12w, noise level: 40 db.
The variable fan speed controller will correctly and precisely adjust the speed of your duct and inline fans, one control switch for 3 settings: high, med, low, built-in grounded control outlet.
Used as intake fan to bring fresh air into grow rooms, help to boost airflow in hvac units to remove exhausts and odors from bathrooms & workshops and ventilate basements & attics, etc.
Power source type: corded-electric
Superior balanced blades for long service life & quiet operation, motor features a permanently lubricated bearing that operates quietly and requires no maintenance.
Note: max operating temp of motor is 130 / 266, max ambient temp is 60 / 140. the motor on the ipower booster fan is not enclosed and is not to be used in high humidity environments. please purchase an ipower inline fan instead if you require this functionality.

3. iPower GLFANXCONTROL Exhaust Variable Speed Adjuster for Duct Inline Fan Vent Blower, HVAC

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9.1/10 our score

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Note: to avoid the risk of burning out the fan motor, controller does not adjust below 50%. this controller is not suitable for shaded pole motor and brushless motor fan
Built-in grounded control outlet. suitable for all duct and inline fans. warranty: 1 year
Ipower fan speed controller will correctly and precisely adjust the speed of your duct and inline fans
One control switch for 3 settings: variable speed, off, high, med, low
Durable 3-pole grounded plug construction, no extra wires to deal with

4. iPower GLFANXBOOSTER4X2 2-Pack 4 Inch 100 CFM Booster Fan Inline Duct Vent Blower

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8.8/10 our score

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Help boost airflow in hvac (heating, ventilation and air conditioning) units and remove exhaust ventilation from grow rooms, kitchens, bathrooms, workshops, basements, attics etc. solve air delivery problems without major system rework or expense.
Diameter: 4 inch, air flow: 100 cfm, speed: 2930 rpm, voltage: 110/120v, wattage: 12w, noise level: 40 db.
Superior balanced blades for long service life & quiet operation, motor features a permanently lubricated bearing that operates quietly and requires no maintenance. 12-month .
Note: max operating temp of motor is 130/ 266, max ambient temp is 60/ 140. the motor on the i power booster fan is not enclosed and is not to be used in high humidity environments. please purchase an i power inline fan instead if you require this functionality.
Portable, lightweight and can be installed anywhere, extra-long 5. 5' grounded power cord inside.

5. VIVOHOME 4 Inch 195CFM Plastic Round Exhaust Inline Duct Fan for Hydroponics Grow

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8.6/10 our score

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Low noise - fan runs at 2930 rpm with 195 cfm of airflow, fan is equipped with a flow deflector to cut noise output, runs at 30 db noise level to ensure your grow operation wont disturb your life
Easy to install - simply affix the exhaust and intake mounting flange together with locking tabs, no tools or screws required, the housing, even the impeller and blades, are easy to detach for cleaning and maintenance
Wide applications - clean and freshen the air for your plants, keeping your environment cool and balanced, ideal for indoor ventilation and odor filtration, widely used in pharmacies, bakeries, cafes, grow tents, hydroponics, bathrooms, greenhouses, basement workshops, etc
Efficient fan - quiet and efficient design, work well in ventilating grow tents, transfer heat or cool rooms, circulate fresh air, and control proper humidity, temperature, and air quality for your grow area, be aware that 195 cfm is the maximum value of air flow tested at zero atmospheric pressure
Premium construction - blades are made with high-quality components for smooth, whisper-quiet operation, ultra-accurate craftsmanship of the centrifuge reduces noise and vibration, compact design means minimal use of space and will fit in any grow room

6. VIVOSUN 6 Inch 440 CFM Inline Duct Fan Vent Blower Ventilation Fan

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8.3/10 our score

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Versatile applications: ideal for cooling lighting fixtures or controlling hot and humid conditions in grow tents/rooms. notice: without speed controller.
Powerful air flow: heavy hitting blower with a fan speed of 2450 rpm for an air flow of 440 cfm. moves air through your target location efficiently for optimal ventilation.
Runs smooth and quiet: powerful fan puts out only 50 db noise level.
Durable build: galvanized steel parts come factory painted to resist atmospheric corrosion from humidity. tight, precise construction eliminates rattling and reduces wear and tear to give the element a long life.
High tech design: the aerodynamically designed centrifugal impeller of this unit delivers strong air flow with a disproportionately low sound profile.

7. Tjernlund M-6 Inline Duct Booster Fan, Hydroponic Blower Heat Air Conditioning Vent Exhaust

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8.1/10 our score

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Great for exhausting high-moisture areas
6 inches, 460 cfm
Includes mounting brackets and hardware
Fan is speed controllable, (speed control device not included)
Low noise and power usage

8. TOPHORT 4 Inch Inline Duct Fan 190 CFM Blower Fan with Variable Speed

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7.8/10 our score

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Basic parameters - powerful blower fan speed : 2500 rpm, air flow: 190cfm . moves air through your target location efficiently for optimal ventilation
Low noise - durable plastic fan housing and blades for extremely low noise(<32 db), variable speed controller for easy fan speed adjustment.
Applications - suitable for industrial, household and horticulture ventilation applications for air clean and temperature control.
No maintenance - motor features a permanently lubricated bearing that operates quietly and requires no maintenance.
Easy installation: removable duct ends with locking tabs for quick removal and easy maintenance.

9. AC Infinity CLOUDLINE S4, Quiet 4” Inline Duct Fan with Speed Controller

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7.5/10 our score

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Mixed flow design combined with a dc or ec-powered motor for a truly quiet and energy efficient performance.
Kit also includes corded ac power adapter, installation manual, and all necessary mounting hardware.
Features an 8-speed manual controller utilizing pwm. see t-series for temperature and humidity controls.
Duct size: 4 | dimensions: 6.9 x 11.9 x 7.4 in. | airflow: 205 cfm | noise: 28 dba | bearings: dual ball
Designed to ventilate grow tents, transfer heating/cooling to rooms, circulate air, exhaust odors, and cool av racks.

10. AC Infinity CLOUDLINE T4, Quiet 4” Inline Duct Fan with Temperature Humidity Controller

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7.2/10 our score

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Mixed flow design combined with a pwm-controlled dc or ec-motor for a truly quiet and energy efficient performance.
Kit also includes corded sensor probe, ac power plug, two duct clamps, and required mounting hardware.
Duct size: 4 | dimensions: 6.9 x 11.9 x 7.4 in. | airflow: 205 cfm | noise: 28 dba | bearings: dual ball
Intelligent controller with temperature and humidity programming, fan speed control, timer, and alarm system.
Designed to ventilate hydroponic grow rooms, transfer heating/cooling, cool av closets, and exhaust odors.