Quietest Inline Fan 2021 (Best Rated Quiet Duct Fans On The Market Compared & Reviewed)

Quietest Inline Fans

Picture the breeze you want while relaxing in your room or when you want to aerate your grow room. That is what an inline fan delivers. The inline fans are small and portable. They are easy to mount and simple to use. While the market has many inline fans, not all will give you the outcomes you want. What are the best quietest inline duct fans on the market? Let’s find out!

In a hurry? Our top inline fans are; Panasonic FV-10NLF1E WhisperLin and AC Infinity CLOUDLINE T6. They are high quality, effective, and yet affordable.

Quiet Inline Fans: Quick Comparison

BEST RATED Panasonic FV-10NLF1E Whisper Line
  • Color: Raw
  • Item Dimensions:13.4 x 9.5 x 7.88 inches
  • Material: Alloy Steel
  • Controller Type: Remote Control
  • Item Weight:13.9 Pounds
  • Air Flow Capacity:120 Cubic Feet Per Minute
  • Model Type: Remote
  • Certification: Energy Star
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RUNNER UP AC Infinity CLOUDLINE T6
  • Color: Black
  • Controller Type: Button Control
  • Finish Type: Matte
  • Control Method app
  • Dimensions: 7.9 x 12.6 x 8.4 in.
  • Airflow: 402 CFM
  • Noise: 32 dBA
  • Bearings: Dual Ball
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Hydrofarm ACDF6 Active Air 6" Inline
  • Color: One Color
  • Item Dimensions:12.5 x 9.3 x 12.5 inches
  • Materials: Plastic
  • Controller Type: Button Control
  • Finish Type: Green
  • Item Weight:10.06 Pounds
  • Wattage:115 watts
  • Voltage:120 Volts
  • Air Flow Capacity:400 Cubic Feet Per Minute
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TerraBloom 6" Inline Fan
  • Color: Black
  • Item Dimensions :11.5 x 8 x 8 inches
  • Material: Plastic
  • Controller Type: Button Control
  • Mounting Type: Wall Mount
  • Number of Blades:10
  • Item Weight:5.5 Pounds
  • Air Flow Capacity:395 Cubic Feet Per Minute
  • Specification Met: ET
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VIVOSUN 6 Inch 390 CFM Inline Duct Fan
  • Color: black
  • SIze:6" Fan
  • Material: Plastic
  • Controller Type: Button Control
  • The fan speed of 2550 RPM
  • Airflow of 390 CFM
  • Noise level AT37dB
  • Specification Met: Certified frustration-free
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TOPHORT 6 Inch Inline Duct Fan
  • Color: Black
  • Material: Plastic
  • Number of Blades:10
  • Fan speed: 2400 RPM
  • Air Flow: 390 CMF
  • Noise level: 34 dB
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Best Quiet Inline Duct Fan 2021: Reviews 

1. Panasonic FV-10NLF1E WhisperLine Quiet Inline Exhaust Fan

Best Overall Quiet Inline Exhaust Fan

Panasonic FV-10NLF1E was the overall best quiet inline exhaust fan for 2021. It is made for residential and light commercial applications thanks to the quiet operation.

It is capable of exhausting air from multiple points.

It uses less energy, and the chances of overheating are minimal. This leads to the longevity of the fan.

The fan has 4” ducts making it easy to install. Other accessories are also included in the package hence a complete unit ready for use.

The product is Energy Star certified and safe for use in the rooms when eliminating air.

Pros

  • Durable construction
  • Easy to install
  • Exhaust air from multiple points
  • Certified for use

Cons

  • It could look better

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2. AC Infinity CLOUDLINE T6

Runner Up

Are you shopping for a quiet 6” inline duct fan?

AC Infinity CLOUDLINE T6 is good for the task.

It comes with a temperature humidity controller for accuracy.

The intelligent controller through the app means accurate outcomes from the rooms where it is installed.

It is powerful with airflow at 402 CFM thanks to the motor. Additionally, this inline duct fan is quiet, and at 32 dB, you will feel the cool environment as you work on different tasks.

Thanks to the dual ball bearings, the fan will work efficiently in a variety of rooms.

Pros

  • Suitable for different rooms
  • Easy to install
  • Powerful airflow
  • App-controlled for efficiency

Cons

  • It is quite delicate

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3. Hydrofarm ACDF6 Active Air 4″ Inline Duct Fan

Best For Small Rooms

Another powerful inline fan that delivers 165CFM is here.

It is a 4 inch inline fan designed for small rooms.

This quiet inline duct fan runs on brushless thermally protected motors hence safe for the room.

Additionally, the motor runs quietly, allowing you to enjoy the calm environment.

The small inline fan features durable construction, low noise output, and comes with a mounting bracket to make the installation easier. Additionally, the fan has reliable customer care service to respond to your questions.

Pros

  • Durable construction
  • Small to suit minimal rooms
  • Low noise levels
  • Thermally protected motors

Cons

  • Not suitable for big rooms

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4. TerraBloom 6″ Inline Fan

Best Safe Quiet 6 Inline Fan 

TerraBloom is another quiet 6 inline fan designed for rooms that require steady air exhausting services.

It has an inbuilt speed controller so you can manage speed through the various speed levels available.

A pre-wired 6 ft grounded cord means you will access power with ease from the power source.

Additionally, the ten blades with a powerful motor deliver 395CMF, which is sufficient to blow air into and out of the room.

Finally, the unit is ETL listed and safe for use.

Pros

  • Powerful operations
  • Easy to set up for use
  • Has easy power access through the code
  • ETL listed and safe

Cons

  • Not easiest to set the setting for temperature and humidity

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5. VIVOSUN 6 Inch 390 CFM Inline Duct Fan

Best For Variable Speeds

Are you looking for the most quiet inline fan in 2021?

VIVOSUN 6 Inch is ideal and designed for rooms that require enough air exhausting services.

It is powerful thanks to the motor and hence capable of delivering an airflow of 390 CFM.

This quietest inline duct fan has a variable speed controller, so you can get the level you prefer depending on how fast you want to exhaust air out of the room.

Additionally, the noise level is below 37dB, so it is whisper quiet when you are in the room, letting you experience a calm environment.

This fan is also impressive since it is easy to install and offers versatility for your room’s breeze. You can still move it around and place it in the correct location for better services.

Pros

  • Durable and powerful
  • Very silent unit
  • Variable speed controls
  • Offers versatile applications

Cons

  • Can squeak a bit when it is turned on

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6. TOPHORT 6 Inch Quietest Inline Fan For Grow Room

Quietest Inline Fan For Grow Room

Our last unit boasts a powerful blower fan that runs at speeds of 2400 RPM, delivering an airflow of 390CFM.

This is sufficient to exhaust air from the rooms and allow the grow room to support your plants.

It is the quietest inline fan for grow room, and at 34dB, you are certain to run your conversations uninterruptedly.

What’s more? This inline fan is easy to install, and no maintenance since the motor is permanently lubricated.

Pros

  • Durable construction
  • No maintenance routines
  • Silent inline duct fan
  • Easy to install

Cons

  • Difficult to remove the fan from the bracket

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Best Quiet Duct Fan

Silent Inline Fan Buying Guide 

You might be in a hurry to buy an inline fan but before that, consider the following factors;

Low Noise Level

If you are installing the fan in a grow room, you’ll need a quiet fan since you’ll be spending most of your time in the grow room. Noise levels are measured in dB, and the lower the value, the quieter it is.

Power 

Measured in CMF, this factor will help you know the amount of power you need for the grow room. It is commonly measured by determining the height, width, and length of the grow room.

You can test the inline fan and see how much time it exhausts the air from the room. If it does this within three minutes, then that is the ideal size of the inline fan. You can still get a quiet duct booster fan for more power.

Size

Size is vital when considering the amount of air you need in the room. Large-sized units will produce a lot of air to cool the room. The inline fans come in a variety of sizes, from 4 inches to 18 inches. Try to visualize everything in your tent before you settle on an inline fan.

Type 

There are three main types of inline fans that you can choose from. These include the; axial inline fans for small rooms, centrifugal inline fans for duct areas, and mix flow inline fans for both small and large rooms. Choose the right inline fan based on the types.

Ease of use

Check the guidelines and choose a model that will work efficiently regardless of your level of experience. A good manufacturer has a step-by-step guide to help you set it up and run the fan.

Price and warranty

Depending on the manufacturer, you will find varying prices of these inline fans. Surprisingly, you can get high-quality fans with impressive features selling affordably.

Check the features and choose your brand carefully. Be aware of overpriced items. The items we recommend here are affordable and efficient.

Final Thoughts About Most Quiet Duct Fans

In conclusion, the inline fans are common with different specifications for the roles. We spent time researching, and out of the many options,  narrowed down to the top rated 6 quietest inline fans on the market.

The best quietest inline duct fans in 2021 are the highly rated Panasonic FV-10NLF1E WhisperLine Inline Spot Silent Ventilation Fan  and AC Infinity CLOUDLINE T6 Quiet Duct Fan.

They’re both very simple to set up and extremely effective for even difficult tasks. 

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