The Best 4 inch inline fan of 2023 – Reviewed and Top Rated
After hours researching and comparing all models on the market, we find out the Best 4 inch inline fan of 2023. Check our ranking below.
2,956 Reviews Scanned
SaleRank No. #1
VIVOSUN D4 4 Inch 195 CFM Inline Duct Ventilation Fan HVAC Vent Blower for Hydroponics Grow Tent
- 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
Rank No. #2
AC Infinity RAXIAL S4, Inline Booster Duct Fan 4” with Speed Controller - Low Noise Inline HVAC Blower Can Fan for Basements, Bathrooms, Kitchens, Workshops
- A duct fan designed to increase existing airflow in HVAC systems and ventilate home spaces like attics and workshops.
- Features a variable fan speed controller, enabling you to optimize airflow and noise level for any application.
- Unibody die-cast construction with no welded seams; reduces vibration while ensuring smoother airflow.
- AC shaded-pole induction motor utilizing balanced steel blades and permanently lubricated ball bearings.
- Duct size: 4” | Dimensions: 7.28 x 3.95 x 3.95 in. | Airflow: 106 CFM | Noise: 28 dBA | Bearings: Dual Ball
Rank No. #3
iPower 4 Inch 230 CFM Inline Duct Ventilation Fan Quiet Vent Blower for Hydroponics Grow Tent, Greenhouse Air Circulation, Upgrade, Black
- Effective Ventilation: Quiet and efficient design with a fan speed of 2600 RPM for an air flow of 230 CFM. Powerful blower to move air to your target location for optimal ventilation
- Low noise: Equipped with a flow deflector that makes the fan airflow more concentrated and reduces the turbulence energy. Run at only 36.4 dB noise level to ensure the grow operation won’t disturb your life
- Simple installation: Removable intake and exhaust ends with locking tabs for simple and easy hookup. Easy to install, quick to remove and convenient to maintain. The cable length is 5.9 feet and can be easily set
- Premium design: Lightweight and compact fan takes up minimal space and fits in any grow room. High-quality blades and efficient flow deflector increase airflow while realizing smooth, whisper-quiet operation
- Wide applications: Suitable for grow tent, greenhouse, basement workshops, bathroom or kitchen. Clean and freshen air. Keep environment humidity and temperature balanced
Rank No. #4
Hon&Guan 4 Inch Inline Booster Duct Fan with Speed Controller - 130 CFM Airflow with 6W Ultra-Low Power and Low Noise
- 【Energy-Efficient Ventilation】This powerful inline duct fan speed of 4500 RPM can create the air flow of 130 CFM, Maximum power consumption is only 6W. Upgrade DC motor & low noise effectively circulating air, quickly move vast amount of air to exhaust odors.
- 【Application Scenarios】The 4 inch booster duct fan designed to quietly ventilate grow rooms, bathrooms, kitchens, workshops, basements, attics and etc, in order to boost airflow in HVAC systems.
- 【Easy to Install】Hon&Guan air exhaust fan's blade and the body are made of high quality plastic, for quick removal and easy maintenance.
- 【Adjustable Controller】 The 4-inch duct fan includes a variable speed controller, which can allows you to adjust the airflow and noise at will.
- 【Excellent Performance】Duct size: 4” | Dimensions: 7.28 x 3.82 x 3.82 in. | Voltage: 100-240V| Air Presssure: 165 Pa| Noise: 26 dBA
SaleRank No. #5
iPower 4 Inch 230 CFM Inline Ventilation Fan Quiet Vent Blower with 8 Feet Non-Insulated Flex Aluminum Ducting for Grow Tent Air Circulation, 2 Clamps Included
- Blower Advantages: Powerful blower with a fan speed of 2600 RPM for an air flow of 230 CFM. Moves air through your target location efficiently for optimal ventilation.
- Efficient Design: Lightweight, compact fan takes up minimal space; ideal for applications where larger fans just won’t fit. Efficient flow deflector feature increases air flow while cutting noise output.
- Simple Installation: Removable intake and exhaust ends with locking tabs for simple and easy hookup. Easy to install, quick to remove and convenient to maintain. The cable length is 5.9 feet and can be easily set.
- Aluminum Ducting Material: Flexible ventilation ducting made from high-quality flame-retardant aluminum, built-in corrosion-resistant wire helix with fireproof coating to reinforce performance, temperature endurance ranges from 0 ~ 185°F. (-18℃ ~ 85℃).
- Wide Applications: Blower and exhaust fan are easy to install and remove. The combo suitable for grow tent, greenhouse, basement workshops, bathroom or kitchen. Keep environment humidity and temperature balanced.
SaleRank No. #6
VEVOR Inline Duct Fan, 4-Inch 205 CFM with Temperature Humidity Controller, Quiet EC-motor Ventilation Exhaust Fan for Cooling Booster, Grow Tents, Hydroponics
- Universal Applications: Take a deep breath and relax. Our inline duct fan is specially designed as an exhaust for heat, humidity, and smoke, improving airflow in air planting tents, hydroponic planting rooms, electronic equipment rooms, kitchens, basements, etc. Get ready to go with the flow.
- Blow Your Worries Away: Our inline fan provides a sufficient airflow of 205 cfm, enough to handle wide areas of ventilation and dehumidification, maintaining clean and fresh air circulation in dry environments all the time. Take control of any environment confidentially.
- Power in Silence: Are you tired of loud, obnoxious ducts? Well, get ready to work in silence! Our inline exhaust fan is equipped with a high-quality EC motor that ensures strong power at a low noise of 28 dB, which will not disturb your work and life. At the same time, the motor saves 30% on energy consumption, extending its service life.
- Take It Easy: VEVOR's inline air duct fan adopts a smart controller. You will freely switch the ON/OFF/TIMER/AUTO modes (High Temperature; Low Temperature; High Humidity; Low Humidity). Pressing the UP and DOWN buttons simultaneously will turn the AUTO MODE off. The auto alarm function is also included. The controller automatically starts or stops according to the temperature and humidity. Note: The controller does not adjust the speed automatically. The speed can only be adjusted artificially.
- Everything You Need: To save time and costs, we provide a 4-inch inline fan with stainless steel clamps, and non-vibration rubber mats and straps, allowing you to effortlessly complete installation. Additionally, you are not restricted in how you install the high-quality duct fan. Choose between hanging it or mounting it on the wall.
Rank No. #7
iPower 4 Inch Inline Duct Fan 100 CFM Booster Exhaust Fan with Low Noise for HVAC Ventilation in Attic, Bathroom, Basemen and Kitchen, 5.5' Grounded Power Cord Included, Silver
- Efficient and durable: High quailty balanced centrifugal impeller and high strength housing for long service life. The motor features a permanently lubricated bearing that operates quietly and requires no maintenance
- High speed and low noise: Diameter-4 inch, speed-2930 RPM, air flow-100 CFM. A less than 30 dB noise level will not disturb your work and do not have any harm
- Easy to install: Compact, lightweight and easy to be installed in areas with little available space. Sufficient 5.5' grounded power cord inside is convenient to use
- Wide application: Boost airflow and exhaust air for HVAC system to remove heats & odors or intake fresh air. Used as intake fans or exhaust fan in grow tents, kitchens, bathrooms, basements, attics, garage, workshops and etc.
- Specification: Voltage: 110/120V; Wattage: 12W; Power Cord: 5.5FT. 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 and turn on after clean.
Rank No. #8
iPower 4 Inch 130 CFM Inline Duct Fan with Variable Speed Controller HVAC Exhaust Blower for Heating Cooling/Grow Tents/Hydroponics Ventilation, 4", Black
- Mixed flow design: Compared with axial and centrifugal fans, mixed flow fan has large air volume and high static pressure for ventilation and purification. Durable plastic housing and blades revolve smoothly and powerfully and cut noise output to 35 dB
- Upgraded Fan: Size: 4inch; fan speed: 2500 RPM; air flow: 130 CFM; wind pressure: 220 pa; bearings: double ball. 110V standard household plug; Pre-wired 5.9 feet power cord. Max Ambient Temp is 140℉/ 60℃
- Speed controller: Three speed switches enable fan to run at low, medium and high speed. Durable 3-pole grounded plug need no extra wires to deal with. You can correctly and precisely adjust the airflow level according to your requirement
- Safe and versatile applications : Fully enclosed junction box, waterproof and dustproof design ensures safe usage and long service life in industrial, household and horticulture ventilation applications. Such as bathroom, washroom, office, grow tent
- Easy installation: Feature with lightweight and compact enough to be installed in any angel and little availvable areas. Simply remove the duct ends with locking tabs for quick installation and easy maintanance
Rank No. #9
iPower 4 Inch 106 CFM Inline Fan Duct Exhaust Booster with Speed Controller for HVAC in Grow Tent, Basements, Bathrooms and Kitchens
- Silent design: Reduce the sound output to only 28 dB-no harm or disturb for your life. Superior balanced blades and centrifugal impeller for quiet operation and long service life.
- Easy to adjust speed: With the variable speed controller on the power cord, you can optimize airflow and noise level for desired application. Turn the knob to control the vent fan to run at different speeds.
- Durable and safe: Strong motor of this duct blower is energy saving and requires no maintenance. Featuring overheating protection, the unit will automatically shut off if overheating is detected. The quality steel housing is sturdy.
- Easy to install: With a diameter of 4 inches, speed of 2990 RPM and 106 CFM airflow, this air exhaust fan is lightweight enough for quich removal and easy installation in areas with little available space
- Wide applications: A duct fan designed to boost airflow in HVAC systems, ventilate home spaces and use in grow tents as intake fans or exhaust fan. Use it in bathrooms, kitchens, workshops, basements, attics and etc.
SaleRank No. #10
VIVOSUN T4 4 Inch 190 CFM Inline Duct Ventilation Fan with Variable Speed Controller for Grow Tent
- Energy-Efficient Ventilation: This powerful blower with a fan speed of 2300 RPM can create an air flow of 190 CFM; It combines the features and benefits of axial and centrifugal fan, effectively circulating air
- Low Noise Level: The durable fan blades revolve smoothly and powerfully, which helps collect airflow volume and cut noise output; A less than 30 dB noise level will not disturb your work
- Adjustable Speed: A stepless speed controller on the power cord enables the fan to run at different speeds; With this speed switch, you can adjust it to the desired airflow level
- Easy Installation: This duct fan is compact and lightweight so it can be installed in small areas; Comes with an installation bracket indicating the direction of the airflow; Removable duct ends with locking tabs
- Versatile Applications: Suitable for industrial, household and horticulture ventilation applications; It can quietly and efficiently moving large volumes of air throughout your ventilation system
Rank No. #11
iPower 4 Inch 200 CFM Inline Duct Ventilation Fan with Variable Speed Controller for Grow Tent/Hydroponics/Indoor Garden, Black
- Low noise and speed control: Durable plastic fan housing, revolving Smoothly and powerfully blades for extremely low noise(<30 dB). With a variable speed controller, you can adjust it to desired airflow level according to your requirement
- Energy-efficient ventilation fan: Combining the features and benefits of axial and centrifugal fan. iPower powerful blower with a fan speed of 2500 RPM can create an air flow of 200 CFM; Effectively circulating air, ventilation and odor purification
- Easy installation: removable duct ends with locking tabs for quick removal and easy maintenance. Universal mounting bracket for direction of airflow indicating
- Versatile: Help you maintain a healthy grow room by quietly and efficiently moving large volumes of air throughout your ventilation system. Suitable for industrial, household and horticulture ventilation applications for air clean and temperature control
- Package included: 1 pack 4 inch inline duct fan with speed controller. Note: max ambient temp is 104℉/40℃.
Rank No. #12
VEVOR Inline Duct Fan, 4-Inch 200 CFM with Variable Speed Controller, Quiet AC-motor Ventilation Exhaust Fan for Cooling Booster, Grow Tents, Hydroponics
- Universal Applications: Take a deep breath and relax. Our inline duct fan is specially designed as an exhaust for heat, humidity, and smoke, improving airflow in air planting tents, hydroponic planting rooms, electronic equipment rooms, kitchens, basements, etc. Get ready to go with the flow.
- Blow Your Worries Away: Our inline fan provides a sufficient airflow of 200 cfm, enough to handle wide areas of ventilation and dehumidification, maintaining clean and fresh air circulation in dry environments all the time. Take control of any environment confidentially.
- Power in Silence: Are you tired of loud, obnoxious ducts? Well, get ready to work in silence! Our inline exhaust fan is equipped with a high-quality AC motor that ensures strong power at a low noise of 29 dB, which will not disturb your work and life. At the same time, the motor saves 30% on energy consumption, extending its service life.
- Control you can Feel: Do you want to get various airflow speeds at any time to achieve better ventilation effects while still being in control? Our inline air duct fan can be controlled via the manual knobs. You can adjust the speed to meet the ventilation needs of different environments. What are you waiting for? Go with the flow!
- Everything You Need: To save time and cut costs dramatically, we provide a 4-inch inline fan with hang-up slings and non-vibration rubber mats and straps, so you can finish the installation quickly! You are in control! Choose between hanging it or mounting it on the wall.
Rank No. #13
VIVOSUN 4 Inch Inline Duct Fan 100 CFM, HVAC Exhaust Ventilation Fan with Low Noise for Basements, Bathrooms, Kitchens and Attics, Silver
- Durable: 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: 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
Rank No. #14
AC Infinity CLOUDLINE A4, Quiet 4” Inline Duct Fan with Speed Controller, EC Motor - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics
- Designed to quietly ventilate grow tents, exhaust odors, transfer heating/cooling to rooms, and cool AV closets.
- Features the same build quality and innovations as the CLOUDLINE Series delivered in a value package.
- Includes a wired 10-speed fan controller; also compatible with all CLOUDLINE Series smart controllers.
- Mixed flow design combined with an EC-powered motor for a truly quiet and energy efficient performance.
- Duct Size: 4” | Dimensions: 6.9 x 11.9 x 7.4 in. | Airflow: 165 CFM | Noise: 29 dBA | Bearings: Dual Ball
Rank No. #15
iPower 4 Inch Duct Inline Fan Upgrade HVAC Exhaust Blower with Variable Speed Controller for Grow Tent Ventilation, Black
- Upgrade high speed and wind pressure design: Make the fan provides a speed of 2750 RPM and a strong wind pressure of 490 Pa. Composite fan blades and center hub which reduces noise and vibration
- Efficient inline fan: Remove heat from the system to solves air delivery problems without major system rework or expense. Suitable for industrial, household and horticulture ventilation applications for air clean and temperature control
- Durable fan: Is made of a high-quality, cold-rolled steel. The surface is treated with a plastic sealant to provide a strong resistance to corrosion. Tight and precise construction reduces wear and tear to give the element a long life
- 4'' air circulation vent blower: Air flow: 190 CFM; speed upgrade to 2750 RPM; wattage: 70W; voltage:110V; wind pressure upgrade to 490 Pa; standard household plug, pre-wired 5 feet power cord
- Versatile applications: Suitable for cooling lighting fixtures and managing hot and humid conditions in grow tents, bathrooms, kitchens, hydroponics, HVAC applications, commercial grow rooms, and more. Note: The speed controller is not included
Rank No. #16
VIVOHOME 4 Inch 195CFM Plastic Round Exhaust Inline Duct Fan for Hydroponics Grow Tent Ventilation
- 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
- 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 won’t 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
Rank No. #17
Spider Farmer 2024 update Quiet 4‘’ Inline Duct Fan with Speed Controller, 205 CFM EC Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics, Indoor Growing and Planting
- 【QUIET & POWERFUL】Mixed flow design combined with a EC motor that powers high-quality impellers makes this fan truly energy efficient than a traditional line fan. With only 35 watts of power but gives a strong airflow up to 205 CFM, very low noise level, only produces 28 DB, this 4” exhaust fan is silent. Lightweight ABS blades reduce the airflow resistance, add airflow by 40%.
- 【BUILT TO LAST】Made of premium ABS plastic housing for superior durability, IP42 rated, making it highly resistant to dust and liquids, and performs well even in harsh environments. The exhaust fan is ETL/FCC listed.
- 【ADJUSTABLE SPEED】The fan speed controller allows you to set your fan speed freely and it is essential for optimal growth of your plant.
- 【WIDE APPLICATIONSL】 Designed for air circulation boosting of cooling and heating systems and air-circulation. The 4 Inch Inline duct fan is a great option for grow tents, closet, storage rooms, kitchens, bathrooms, basements and more.
- 【WORRY FREE SHOPPING】Spider Farmer promises to provide excellent customer service support before and after buying. If you have any questions, please feel free to contact us via email.
Rank No. #18
AC Infinity CLOUDLINE PRO S4, Quiet 4” Inline Duct Fan with Speed Controller – EC Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics
- Designed to ventilate grow tents, transfer heating/cooling to rooms, circulate air, exhaust odors, and cool AV racks.
- Features a wired 10-speed fan controller; also compatible with all UIS controllers with intelligent programming.
- PWM-controlled EC motor provides quiet and energy-efficient performance with minimal heat and noise.
- Mixed flow design with stator blade and hydrodynamic wind circles enables airflow delivery in high resistance areas.
- Duct Size: 4” | Dimensions: 6.9 x 11.9 x 7.4 in. | Airflow: 205 CFM | Noise: 28 dBA | Bearings: Dual Ball
Rank No. #19
Inline Duct Fan 4 Inch Vent Booster, HVAC Exhaust Intake Fans 76 CFM, Ventilation Blower for Grow Tent Attic Kitchen Garage Greenhouse Basement (Φ 4 inch/110v)
- DIY Your HVAC System >> You can supply fresh air with one or more fans to DIY air circulation systems depending on the size of your space.
- Widely Used Grow Tent Fan -- The 4 inch inline fan is widely used in homes,pets, offices, warehouses, restaurants, bars, shops, shopping malls, grow tents, greenhouses and other places where a lot of air is needed.
- Large Airflow -- It is designed with high quality sleeve motor, quiet and service life more than 3 years, with rotational speed 2400 r/min, 76 CFM large airflow.
- Over-heat Protection >> The motor comes with low operating temperature and low heat generation, the built-in temperature protection device, the contact point is disconnected when the motor overheats, which acts as a power failure protection. double protection is safer.
- Easy to install >> 39" cable with plug, brown live wire, blue neutral wire, easy to install, please fix the fan to avoid noise due to looseness.
Rank No. #20
AC Infinity CLOUDLINE PRO T4, Quiet 4” Inline Duct Fan with Temperature Humidity VPD Controller, WiFi Integrated App Control - Ventilation Exhaust Fan for Heating Cooling, Grow Tents, Hydroponics
- Designed to ventilate hydroponic grow rooms, transfer heating/cooling, cool AV closets, and exhaust odors.
- Dynamic temperature and humidity programming, with timers, grow cycles, scheduling, minimum speed.
- Remotely connect to our WiFi app to access advance programs, view climate data, and set automation.
- Mixed flow design combined with a PWM-controlled EC-motor for a truly quiet and energy efficient performance.
- Duct Size: 4” | Dimensions: 6.9 x 11.9 x 7.4 in. | Airflow: 205 CFM | Noise: 28 dBA | Bearings: Dual Ball
Last update on 2023-07-31 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API
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- Brand Value: Every brand of 4 inch inline fan has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
- Features: What bells and whistles matter for an 4 inch inline fan?
- Specifications: How powerful they are can be measured.
- Product Value: This simply is how much bang for the buck you get from your 4 inch inline fan.
- Customer Ratings: Number ratings grade 4 inch inline fan objectively.
- Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their 4 inch inline fan.
- Product Quality: You don’t always get what you pay for with an 4 inch inline fan, sometimes less, and sometimes more.
- Product Reliability: How sturdy and durable an 4 inch inline fan is should be an indication of how long it will work out for you.
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