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Quietest Radon Fan

10 Best Quietest Radon Fan 2025 in the United States

#1

Winner

10.0 score

RadonAway 23005-1 GP501 Radon Mitigation Fan, 3" White

RadonAway 23005-1 GP501 Radon Mitigation Fan, 3" White

RadonAway

10.0 score

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The RadonAway 23005-1 GP501 is designed as a radon mitigation fan suitable for both indoor and outdoor use, with a focus on easy installation thanks to its mounting options on duct pipes or flanges. It works with 3" or 4" diameter ducts, which makes it flexible for common radon mitigation setups. RadonAway fans are generally known for quiet operation, making this model a good choice if noise is a concern in your home.

Rating
10.0
Chosen by1,442
Noise Level
Durability and Warranty

Most important from
718 reviews

Noise Level
The fan runs quietly enough to blend into typical outdoor equipment noise, making it unobtrusive in most home settings.
Durability and Warranty
Durability is proven, with units lasting over two decades without maintenance, highlighting reliable long-term performance.
#2
10.0 score

RadonAway RP145c Radon Fan P/N 23030-1 Inlet/Outlet Diameter of 4.5

RadonAway RP145c Radon Fan P/N 23030-1 Inlet/Outlet Diameter of 4.5

RadonAway

10.0 score

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The RadonAway RP145 Radon Fan is designed to be one of the quietest options on the market, operating at just 30 dB, which is almost whisper-quiet. This makes it an excellent choice for residential and commercial spaces where noise is a concern. With an airflow capacity of 166 Cubic Feet Per Minute (CFM) and a maximum rotational speed of 1500 RPM, it effectively ventilates spaces to reduce radon levels, which is crucial for health and safety.

Rating
10.0
Noise Level
Durability and Warranty

Most important from
1960 reviews

Noise Level
This fan is impressively quiet, significantly reducing noise compared to older models and contributing to a more peaceful home environment.
Durability and Warranty
Durability stands out, with users mentioning that their previous units lasted nearly a decade before needing replacement.
#3
8.8 score

Tjernlund RMS160 Sidewall Radon Mitigation System

Tjernlund RMS160 Sidewall Radon Mitigation System

Tjernlund

8.8 score

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The Tjernlund RMS160 Sidewall Radon Mitigation System is designed to reduce radon safely without requiring vertical piping on your home's exterior, which can be visually unappealing. It includes a plug-in fan with 3" PVC connectors and an exterior hood that helps push harmful gases away quickly. One of its strengths is the vibration-isolated mounting system, which helps minimize noise, an important factor for those looking for a quiet radon fan. This feature suggests it operates more quietly than many alternatives.

Rating
8.8
Noise Level
Durability and Warranty

Most important from
92 reviews

Noise Level
Noise inside the home is very low and generally unnoticeable to guests, though the motor can be heard if specifically listened for.
Durability and Warranty
The fan runs continuously with no on/off switch, offering a set-and-forget solution that requires minimal maintenance.

Top 10 Best Quietest Radon Fan 2025 in the United States

#1

Winner

10.0  score
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RadonAway

RadonAway 23005-1 GP501 Radon Mitigation Fan, 3" White

Energy Efficiency: 120 Volts

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Chosen by 1442 this week

#2
10.0  score
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RadonAway

RadonAway RP145c Radon Fan P/N 23030-1 Inlet/Outlet Diameter of 4.5

Noise Level: 30 dB
Airflow Capacity: 166 CFM
Energy Efficiency: energy efficient
Durability and Warranty: durable

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#3
8.8  score
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Tjernlund

Tjernlund RMS160 Sidewall Radon Mitigation System

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#4
7.9  score
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FANTECH

Fantech RN2 Radon Fan | 4 Inch | Quiet and Efficient Radon Mitigation | 220 Cfm White

Noise Level: 25 dB
Airflow Capacity: 220 CFM
Static Pressure: 0.50”
Energy Efficiency: 58 watts

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#5
7.9  score
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Dcfairfan

Dcfairfan 4x4 inch Radon Installation Fan Kit, Radon Mitigation System Kit Inline Duct Fan IP67 Waterproof, Indoor Outdoor Ventilation Commercial/Residential, Rubber Coupler, Manometer

Noise Level: 42 dB
Airflow Capacity: 260 cc/min
Energy Efficiency: 85W motor, 3 cubic inches/min/watt
Durability and Warranty: 50,000 hours, 3-year warranty

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#6
7.9  score
Slide 1

FANTECH

Fantech Rn3 Radon Fan 6" Duct - 285 cfm

Noise Level: 26 dB
Airflow Capacity: 57 Cubic Feet/Minute
Static Pressure: 2.0 inches
Energy Efficiency: 288 watts
Durability and Warranty: Vibration-welded seam, leak-proof housing

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#7
7.9  score
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Rysmirs

Rysmirs 4 to 3 inch Radon Mitigation Fan System Kit - Ultra Quiet Inline Centrifugal Duct Fan Exhaust Fan with Rubber Couplers and Air Pressure Indicator

Noise Level: 42 dB
Airflow Capacity: 260 CFM
Energy Efficiency: energy-efficient, copper wire coil, external rotor
Durability and Warranty: service life up to 10 years

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#8
7.3  score
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RadonAway

RadonAway 23032-1 RP260 Radon Mitigation Fan, 6"

Airflow Capacity: 251 Cubic Feet Per Minute
Energy Efficiency: energy-saving
Durability and Warranty: water-hardened motorized impeller, thermally protected

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#9
7.0  score
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Aprilaire

Aprilaire ARN25F Quiet Energy Efficient Radon Mitigation Fan for Basement, Crawlspace or Slab Application, Indoor/Outdoor, 1500 and 2500 Square Feet

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17% OFF
#10
7.0  score
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Suncourt

Suncourt Radon Mitigation System Kit for Sub-Slab Depressurization, Basements, Crawlspaces — Radon Fan Kit with 2 Couplers 4” to 3” and Manometer, Rated for Indoor/Outdoor Use (RDK04-3)

Noise Level: quiet operation
Airflow Capacity: 200 CFM
Static Pressure: effective in varying conditions
Energy Efficiency: 77 watts
Durability and Warranty: UV resistant, epoxy sealed, CSA, UL listed

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Buying Guide for the Best Quietest Radon Fan

Choosing the right radon fan is crucial for ensuring your home remains safe from radon gas, which is a leading cause of lung cancer. When selecting a radon fan, it's important to consider several key specifications that will help you find the quietest and most effective option for your needs. Understanding these specifications will guide you in making an informed decision that balances performance, noise level, and suitability for your specific situation.
Noise LevelNoise level is a critical specification when choosing a radon fan, especially if the fan will be installed in or near living spaces. Noise level is typically measured in decibels (dB). Lower dB values indicate quieter operation. For a quiet radon fan, look for models that operate at 50 dB or lower. If the fan will be installed in an attic or outside, you might tolerate slightly higher noise levels. Consider your sensitivity to noise and the location of the fan when making your choice.
Airflow CapacityAirflow capacity, measured in cubic feet per minute (CFM), indicates how much air the fan can move. This is important because it determines the fan's ability to reduce radon levels effectively. Higher CFM values mean more powerful fans. For small to medium-sized homes, a fan with 100-200 CFM may be sufficient. Larger homes or those with higher radon levels may require fans with 200-300 CFM or more. Assess the size of your home and the radon levels to determine the appropriate airflow capacity.
Static PressureStatic pressure, measured in inches of water gauge (in. w.g.), refers to the resistance the fan must overcome to move air through the radon mitigation system. Higher static pressure ratings indicate the fan can handle more resistance, which is important for complex or long duct systems. For simple systems with short duct runs, a fan with lower static pressure (1-2 in. w.g.) may be adequate. For more complex systems, look for fans with higher static pressure ratings (3-4 in. w.g.). Consider the complexity of your ductwork when evaluating this spec.
Energy EfficiencyEnergy efficiency is important for reducing long-term operating costs and environmental impact. Look for fans with energy-efficient motors that consume less power while maintaining effective performance. Energy efficiency is often indicated by the fan's wattage; lower wattage fans are generally more efficient. Choose a fan that balances energy consumption with the necessary airflow capacity and static pressure for your home.
Durability and WarrantyDurability ensures that the fan will operate reliably over time, which is crucial for maintaining safe radon levels. Look for fans made from high-quality materials that can withstand environmental factors such as moisture and temperature changes. A good warranty (typically 5 years or more) indicates the manufacturer's confidence in the product's longevity. Consider the fan's build quality and warranty to ensure you are investing in a reliable and long-lasting solution.

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