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Best Radon Mitigation Fans of July 2026

Fantech Rn2EC Radon Fan leads 20 radon mitigation fans at 61/100, 2 points ahead of AMG Maverick Radon Fan. Its strongest scored lines are ec motor (Yes, 100/100) and outdoor rating (Yes, 100/100). The weakest high-weight line is power draw at 24/100 (73). AMG Eagle Extreme Radon Fan is #3 at 55/100, leaving a 6-point spread across the top 3.

Updated from published manufacturer specs · Scored by the Havenraft methodology · Editorial standards

SPEC LEDGER#1

Fantech Rn2EC Radon Fan

Radon Mitigation Fans

Cfm At 0 5 Iw160
Duct Diameter (in)4 in
Ec MotorYes
Max Flow235
Havenraft61/100

10 specs · 1 source

Full scorecard ->
Flow At 0.5 In. WC22%
Maximum Static Pressure20%
Power Draw16%
Published Noise Rating12%
EC Motor10%
Outdoor Rating8%
Speed Control6%
Maximum Airflow6%
Scored from published specs · method

Quick picks

Where should you start?

  1. #1Best Overall61/100

    Fantech Rn2EC Radon Fan

    Weak spot: power draw (24/100)

    Scorecard
  2. #2#2 Overall59/100

    AMG Maverick Radon Fan

    Weak spot: power draw (1/100)

    Scorecard
  3. #3#3 Overall55/100

    AMG Eagle Extreme Radon Fan

    Weak spot: maximum static pressure (19/100)

    Scorecard
  4. #4#4 Overall50/100

    RadonAway RP140 Radon Fan

    Weak spot: ec motor (0/100)

    Scorecard

How to choose

How do the weights fit your use?

Before touching a filter, note that flow at 0.5 in. wc alone accounts for 22% of every radon mitigation fans score here. Afterward, maximum static pressure is worth a look if tighter slabs and higher resistance systems describes your situation. Only then should power draw or published noise rating enter the decision, and only to break a tie.

Use-case comparison

Radon Mitigation Fans: Which Fit Path Applies to You

Set flow at 0.5 in. wc as the non-negotiable filter first. Everything downstream of it, maximum static pressure included, is a preference rather than a requirement for radon mitigation fans. A missing flow at 0.5 in. wc entry means the source did not publish one as of July 1, 2026 — it does not mean the product failed that check. A radon mitigation fans row can score well overall while still being wrong for a specific buyer — usually because maximum static pressure does not match their case even though flow at 0.5 in. wc does. That maximum static pressure gap is exactly what the detail panel is for.

All 20 radon mitigation fans, ranked

This view trims the radon mitigation fans spec list down to flow at 0.5 in. wc, maximum static pressure, and power draw — the three fields worth comparing before opening a row.

Product-position strips show where Fantech Rn2EC Radon Fan sits beside the rest of the scored field. Havenraft charts 8 scored dimensions across all 20 radon mitigation fans. Among the radon mitigation fans, maximum airflow shows the widest spread in the full catalog range. Specification range strips One tick for each of the 20 radon mitigation fans; the top rank uses the heavier green mark. Flow At 0.5 In. WC 14 observed values 45 240 Maximum Static Pressure 12 observed values 1.4 4.5 Power Draw 14 observed values 15 W 91 W Published Noise Rating 18 observed values 3 7.3 EC Motor 2 observed values No Yes Outdoor Rating No visible spread Yes Yes Maximum Airflow 18 observed values 71 356 Speed Control 2 observed values No Yes All 20 radon mitigation fans are shown on every measure - even where most models tie.
Havenraft charts 8 scored dimensions across all 20 radon mitigation fans. Among the radon mitigation fans, maximum airflow shows the widest spread in the full catalog range.
Showing all 20 scored products.
2026's radon mitigation fans field runs 20 rows deep, each one scored from published manufacturer and retailer spec tables; marketing claims are not scored unless the source hierarchy backs the field, with cfm at 0 5 iw, max flow, noise sones beside each score.
ProductBest fit / trade-offAction
Top scoreFantech Rn2EC Radon Fan61/1001602353.5Best With Ec MotorTrade-off: Power Draw 24/100Full scorecard
AMG Maverick Radon Fan59/1002203006.4Trade-off: Power Draw 1/100Full scorecard
AMG Eagle Extreme Radon Fan55/1001502015.3Trade-off: Maximum Static Pressure 19/100Full scorecard
RadonAway RP140 Radon Fan50/1001351663Trade-off: EC Motor 0/100Full scorecard
RadonAway GX4 Radon Fan46/100631484Trade-off: EC Motor 0/100Full scorecard
RadonAway RP280 Radon Fan45/1002203344.5Trade-off: Power Draw 0/100Full scorecard
Fantech RN4 Radon Fan44/1002403567Best High-Capacity PickTrade-off: EC Motor 0/100Full scorecard
Fantech Rn1 Radon Fan43/1001051463Trade-off: Maximum Static Pressure 0/100
RadonAway GP301 Radon Fan39/10045875.2Trade-off: Flow At 0.5 In. WC 0/100
RadonAway RP265 Radon Fan39/1002383347.3Trade-off: Power Draw 0/100
RadonAway RP260 Radon Fan39/1001762726.5Trade-off: EC Motor 0/100
RadonAway RP145 Radon Fan37/1001351665.8Trade-off: EC Motor 0/100
Fantech RN3 Radon Fan37/1001602126.2Trade-off: EC Motor 0/100
RadonAway GP501 Radon Fan36/10045715.7Trade-off: Flow At 0.5 In. WC 0/100
RadonAway GP401 Radon Fan36/100951356.1Trade-off: EC Motor 0/100
Fantech RN2 Radon Fan35/1001201635.7Trade-off: EC Motor 0/100
Festa Radon Force Radon Fan35/1001201765.6Trade-off: EC Motor 0/100
RadonAway XP201 Radon Fan34/1001121625.4Trade-off: EC Motor 0/100
Fantech HP 190 Radon Fan31/1001001575.9Trade-off: EC Motor 0/100
Fantech HP 220 Radon Fan28/1001201846.8Trade-off: EC Motor 0/100
  1. #161/100
    Cfm At 0 5 Iw
    160
    Max Flow
    235
    Noise Sones
    3.5

    Best With Ec Motor

    Trade-off: Power Draw 24/100

    Full scorecard
  2. #259/100
    Cfm At 0 5 Iw
    220
    Max Flow
    300
    Noise Sones
    6.4

    Trade-off: Power Draw 1/100

    Full scorecard
  3. #355/100
    Cfm At 0 5 Iw
    150
    Max Flow
    201
    Noise Sones
    5.3

    Trade-off: Maximum Static Pressure 19/100

    Full scorecard
  4. #450/100
    Cfm At 0 5 Iw
    135
    Max Flow
    166
    Noise Sones
    3

    Trade-off: EC Motor 0/100

    Full scorecard
  5. #546/100
    Cfm At 0 5 Iw
    63
    Max Flow
    148
    Noise Sones
    4

    Trade-off: EC Motor 0/100

    Full scorecard
  6. #645/100
    Cfm At 0 5 Iw
    220
    Max Flow
    334
    Noise Sones
    4.5

    Trade-off: Power Draw 0/100

    Full scorecard
  7. #744/100
    Cfm At 0 5 Iw
    240
    Max Flow
    356
    Noise Sones
    7

    Best High-Capacity Pick

    Trade-off: EC Motor 0/100

    Full scorecard
  8. #8
    Fantech Rn1 Radon Fan
    43/100
    Cfm At 0 5 Iw
    105
    Max Flow
    146
    Noise Sones
    3

    Trade-off: Maximum Static Pressure 0/100

  9. #9
    RadonAway GP301 Radon Fan
    39/100
    Cfm At 0 5 Iw
    45
    Max Flow
    87
    Noise Sones
    5.2

    Trade-off: Flow At 0.5 In. WC 0/100

  10. #10
    RadonAway RP265 Radon Fan
    39/100
    Cfm At 0 5 Iw
    238
    Max Flow
    334
    Noise Sones
    7.3

    Trade-off: Power Draw 0/100

  11. #11
    RadonAway RP260 Radon Fan
    39/100
    Cfm At 0 5 Iw
    176
    Max Flow
    272
    Noise Sones
    6.5

    Trade-off: EC Motor 0/100

  12. #12
    RadonAway RP145 Radon Fan
    37/100
    Cfm At 0 5 Iw
    135
    Max Flow
    166
    Noise Sones
    5.8

    Trade-off: EC Motor 0/100

  13. #13
    Fantech RN3 Radon Fan
    37/100
    Cfm At 0 5 Iw
    160
    Max Flow
    212
    Noise Sones
    6.2

    Trade-off: EC Motor 0/100

  14. #14
    RadonAway GP501 Radon Fan
    36/100
    Cfm At 0 5 Iw
    45
    Max Flow
    71
    Noise Sones
    5.7

    Trade-off: Flow At 0.5 In. WC 0/100

  15. #15
    RadonAway GP401 Radon Fan
    36/100
    Cfm At 0 5 Iw
    95
    Max Flow
    135
    Noise Sones
    6.1

    Trade-off: EC Motor 0/100

  16. #16
    Fantech RN2 Radon Fan
    35/100
    Cfm At 0 5 Iw
    120
    Max Flow
    163
    Noise Sones
    5.7

    Trade-off: EC Motor 0/100

  17. #17
    Festa Radon Force Radon Fan
    35/100
    Cfm At 0 5 Iw
    120
    Max Flow
    176
    Noise Sones
    5.6

    Trade-off: EC Motor 0/100

  18. #18
    RadonAway XP201 Radon Fan
    34/100
    Cfm At 0 5 Iw
    112
    Max Flow
    162
    Noise Sones
    5.4

    Trade-off: EC Motor 0/100

  19. #19
    Fantech HP 190 Radon Fan
    31/100
    Cfm At 0 5 Iw
    100
    Max Flow
    157
    Noise Sones
    5.9

    Trade-off: EC Motor 0/100

  20. #20
    Fantech HP 220 Radon Fan
    28/100
    Cfm At 0 5 Iw
    120
    Max Flow
    184
    Noise Sones
    6.8

    Trade-off: EC Motor 0/100

Tie-break rules settle close radon mitigation fans scores within 2 points; keep cfm at 0 5 iw and max flow beside the rank before calling it a clean win.

All 20 scored products are included in the table.

Source fields checked on July 1, 2026. This radon mitigation fans table keeps cfm at 0 5 iw, max flow, and noise sones beside the score; price and availability entries stay omitted unless a source provides them. No product is a perfect match; low scores mark the closest match only when a row misses a scored dimension.

Product Finder

Radon Mitigation Fan Sizing Finder

Answer 4-5 questions about existing pipe diameter, measured static pressure, slab permeability, crawlspace membrane use, and replacement versus new-system sizing. The tool returns a ranked shortlist that shows moderate-pressure airflow value, pressure reserve, wattage tradeoffs, and when the buyer should route the job to a licensed radon professional.

On a 0-100 scale, the visible weights and published specifications begin with radon mitigation fans: flow at 0.5 in. wc and maximum static pressure.

Cfm At 0 5 Iw120

Under this line, cfm at 0 5 iw isn't strong enough to qualify.

Duct Diameter (in)4 in

Turning this down brings back duct diameter (in) laggards.

Ec Motor

Drops rows lacking ec motor.

More matching details7 more
Max Flow166

Below this point, max flow no longer qualifies.

Max Pressure Iw2.1

Set the max pressure iw bar wherever fits your project best.

Noise Sones5.7

Set how much noise sones is the minimum you'll accept.

Outdoor Rated

Insist on outdoor rated.

Speed Control

Filters to speed control.

Wattage60 W

Too strict on wattage? Pull it back.

Weight (Lighter Is Better)7 lb

This is the toughest weight (lighter is better) floor you can set.

FILTER THE TABLE

Set radon mitigation fans preferences around flow at 0.5 in. wc to narrow the ranking below. Until then, every scored row stays visible in the default order.

Radon Mitigation Fans positioning map using Flow At 0.5 In. WC on the x axis and Maximum Static Pressure on the y axis. Havenraft maps 20 radon mitigation fans by flow at 0.5 in. wc and maximum static pressure. Lead marker score: 61/100 with maximum static pressure plotted. Radon Mitigation Fans positioning map Each dot is one of the 20 radon mitigation fans plotted; labels are limited to the top five ranks. 45142.5240 1.434.5 lower flow at 0.5 in. wc, higher maximum static pressurehigher flow at 0.5 in. wc, higher maximum static pressurelower flow at 0.5 in. wc, lower maximum static pressurehigher flow at 0.5 in. wc, lower maximum static pressure Fantech Rn2EC Radon Fan AMG Maverick Radon Fan AMG Eagle Extreme Radon Fan RadonAway RP140 Radon Fan RadonAway GX4 Radon Fan Flow At 0.5 In. WC Maximum Static Pressure Axes use catalog values for flow at 0.5 in. wc and maximum static pressure.
Havenraft maps 20 radon mitigation fans by flow at 0.5 in. wc and maximum static pressure. Lead marker score: 61/100 with maximum static pressure plotted.

How does each pick stack up?

Radon Mitigation Fans flow at 0.5 in. wc score breakdown for 5 ranked products by weighted scoring dimension. The top five radon mitigation fans are separated by 15 points; flow at 0.5 in. wc is the tiebreaker. Score contribution by dimension Flow At 0.5 In. WC (22%)Maximum Static Pressure (20%)Power Draw (16%)Published Noise Rating (12%)EC Motor (10%)Outdoor Rating (8%)Maximum Airflow (6%)Speed Control (6%) 0255075100 #1 Fantech Rn2EC Radon Fan: 61/100 #1 Fantech Rn2EC Radon Fan 1311108 61/100 #2 AMG Maverick Radon Fan: 59/100 #2 AMG Maverick Radon Fan 208108 59/100 #3 AMG Eagle Extreme Radon Fan: 55/100 #3 AMG Eagle Extreme Radon Fan 12108 55/100 #4 RadonAway RP140 Radon Fan: 50/100 #4 RadonAway RP140 Radon Fan 1016128 50/100 #5 RadonAway GX4 Radon Fan: 46/100 #5 RadonAway GX4 Radon Fan 1998 46/100 Radon Mitigation Fans: weight x grade, 0-100 scale. Havenraft
  1. #1 Fantech Rn2EC Radon Fan61/100Flow At 0.5 In. WC 13 pts, Published Noise Rating 11 pts, EC Motor 10 pts
  2. #2 AMG Maverick Radon Fan59/100Flow At 0.5 In. WC 20 pts, EC Motor 10 pts, Outdoor Rating 8 pts
  3. #3 AMG Eagle Extreme Radon Fan55/100Flow At 0.5 In. WC 12 pts, EC Motor 10 pts, Outdoor Rating 8 pts
  4. #4 RadonAway RP140 Radon Fan50/100Power Draw 16 pts, Published Noise Rating 12 pts, Flow At 0.5 In. WC 10 pts
  5. #5 RadonAway GX4 Radon Fan46/100Maximum Static Pressure 19 pts, Published Noise Rating 9 pts, Outdoor Rating 8 pts
The top five radon mitigation fans are separated by 15 points; flow at 0.5 in. wc is the tiebreaker.

Best Overall

Fantech Rn2EC Radon Fan

61/100

Havenrafthow it’s scored

Cfm At 0 5 Iw
160
Duct Diameter (in)
4 in
Ec Motor
Yes
Max Flow
235
Max Pressure Iw
2.3
Showing all 8 scored dimensions
Flow At 0.5 In. WC59
Maximum Static Pressure29
Power Draw24
Published Noise Rating88
EC Motor100
Outdoor Rating100
Speed Control100
Maximum Airflow58

Why it ranks here

Fantech Rn2EC Radon Fan shows a 24/100 soft spot on power draw from 73 w wattage. Fantech Rn2EC Radon Fan wins the published noise rating comparison, 88/100 against AMG Maverick Radon Fan's 21/100; the Fantech Rn2EC Radon Fan listing shows 3.5 noise sones. Fantech Rn2EC Radon Fan leads its own scorecard on ec motor, a 100/100 result.

Fantech Rn2EC Radon Fan and AMG Maverick Radon Fan are separated by 2 points; compare flow at 0.5 in. wc and maximum static pressure before choosing between them.

  • Published Noise Rating: A listed noise sones of 3.5 for Fantech Rn2EC Radon Fan keeps this dimension above the pack; helping Fantech Rn2EC Radon Fan reach 61/100 for quiet outdoor wall installs.
  • EC Motor: An ec-motor listing for Fantech Rn2EC Radon Fan reaches the ceiling for this dimension; one reason Fantech Rn2EC Radon Fan stands out for efficient variable-speed operation.
  • Outdoor Rating: An outdoor-rated listing for Fantech Rn2EC Radon Fan reaches the top grade on this line; a visible edge for Fantech Rn2EC Radon Fan for exterior fan mounting.

Check before you buy

  • For the Rn2EC Radon Fan, the published record is weakest on power draw at 73 (24/100), the line to weigh before buying.
  • Fantech Rn2EC Radon Fan loses ground on power draw: a 73 w wattage sits at 24/100.
Details ▾
Display model
Rn2EC
Cfm At 0 5 Iw
160
Duct Diameter (in)
4 in
Ec Motor
Yes
Max Flow
235
Max Pressure Iw
2.3
Noise Sones
3.5
Outdoor Rated
Yes
Speed Control
Yes
Wattage
73 W
Weight (Lighter Is Better)
6 lb
Last verified
2026-07-01
Compare all 20 ↑Specs checked July 1, 2026

#2 Overall

AMG Maverick Radon Fan

59/100

Havenrafthow it’s scored

Cfm At 0 5 Iw
220
Duct Diameter (in)
4 in
Ec Motor
Yes
Max Flow
300
Max Pressure Iw
2.6
Showing all 8 scored dimensions
Flow At 0.5 In. WC90
Maximum Static Pressure39
Power Draw1
Published Noise Rating21
EC Motor100
Outdoor Rating100
Speed Control100
Maximum Airflow80

Why it ranks here

AMG Maverick Radon Fan comes out ahead on flow at 0.5 in. WC: 90/100 to AMG Eagle Extreme Radon Fan's 54/100 (220 CFM at 0 5 iw for AMG Maverick Radon Fan). AMG Maverick Radon Fan trails on published noise rating here, 21/100 to Fantech Rn2EC Radon Fan's 88/100. A listed 8 lb ties AMG Maverick Radon Fan for the heaviest listed weight here.

AMG Maverick Radon Fan stays close to Fantech Rn2EC Radon Fan with only 2 points between them, so flow at 0.5 in. wc then maximum static pressure is the first place to look for a practical difference.

  • Flow At 0.5 In. WC: A listed CFM at 0 5 iw of 220 for AMG Maverick Radon Fan keeps this dimension in the upper range; a visible edge for AMG Maverick Radon Fan for typical residential sub-slab systems.
  • EC Motor: An ec-motor listing for AMG Maverick Radon Fan reaches the top grade on this line; a visible edge for AMG Maverick Radon Fan for efficient variable-speed operation.
  • Outdoor Rating: An outdoor-rated listing for AMG Maverick Radon Fan takes full credit for this dimension; useful support for buyers comparing AMG Maverick Radon Fan for exterior fan mounting.

Check before you buy

  • For the Maverick Radon Fan, the published record is weakest on power draw at 90 (1/100), the line to weigh before buying.
  • AMG Maverick Radon Fan loses ground on power draw: a 90 w wattage sits at 1/100.
Details ▾
Display model
Maverick
Cfm At 0 5 Iw
220
Duct Diameter (in)
4 in
Ec Motor
Yes
Max Flow
300
Max Pressure Iw
2.6
Noise Sones
6.4
Outdoor Rated
Yes
Speed Control
Yes
Wattage
90 W
Weight (Lighter Is Better)
8 lb
Last verified
2026-07-01
Compare all 20 ↑Specs checked July 1, 2026

#3 Overall

AMG Eagle Extreme Radon Fan

55/100

Havenrafthow it’s scored

Cfm At 0 5 Iw
150
Duct Diameter (in)
4 in
Ec Motor
Yes
Max Flow
201
Max Pressure Iw
2
Showing all 8 scored dimensions
Flow At 0.5 In. WC54
Maximum Static Pressure19
Power Draw43
Published Noise Rating47
EC Motor100
Outdoor Rating100
Speed Control100
Maximum Airflow46

Why it ranks here

AMG Eagle Extreme Radon Fan beats RadonAway RP140 Radon Fan on ec motor: 100/100 vs 0/100. AMG Eagle Extreme Radon Fan reads 54/100 on flow at 0.5 in. WC, below AMG Maverick Radon Fan at 90/100. AMG Eagle Extreme Radon Fan, at 19/100, gives ground on maximum static pressure.

  • EC Motor: An ec-motor listing for AMG Eagle Extreme Radon Fan takes full credit for this dimension; useful support for buyers comparing AMG Eagle Extreme Radon Fan for efficient variable-speed operation.
  • Outdoor Rating: An outdoor-rated listing for AMG Eagle Extreme Radon Fan hits the ceiling for this scored input; helping AMG Eagle Extreme Radon Fan reach 55/100 for exterior fan mounting.
  • Speed Control: A speed-control listing for AMG Eagle Extreme Radon Fan lands at the top of this score lane; one reason AMG Eagle Extreme Radon Fan stands out for tuning system pressure and noise.

Check before you buy

  • For the Eagle Extreme Radon Fan, the published record is weakest on maximum static pressure at 2 (19/100), the line to weigh before buying.
  • AMG Eagle Extreme Radon Fan carries a listed max pressure iw of 2 as a 19/100 trade-off for tighter slabs and higher resistance systems.
Details ▾
Display model
Eagle Extreme
Cfm At 0 5 Iw
150
Duct Diameter (in)
4 in
Ec Motor
Yes
Max Flow
201
Max Pressure Iw
2
Noise Sones
5.3
Outdoor Rated
Yes
Speed Control
Yes
Wattage
58 W
Weight (Lighter Is Better)
7 lb
Last verified
2026-07-01
Compare all 20 ↑Specs checked July 1, 2026

#4 Overall

RadonAway RP140 Radon Fan

50/100

Havenrafthow it’s scored

Cfm At 0 5 Iw
135
Duct Diameter (in)
4 in
Ec Motor
No
Max Flow
166
Max Pressure Iw
1.7
Showing all 8 scored dimensions
Flow At 0.5 In. WC46
Maximum Static Pressure10
Power Draw100
Published Noise Rating100
EC Motor0
Outdoor Rating100
Speed Control0
Maximum Airflow33

Why it ranks here

RadonAway RP140 Radon Fan sits level with the set's lowest listed noise sones at 3. RadonAway RP140 Radon Fan leads power draw here, 100/100 to RadonAway GX4 Radon Fan's 41/100, with 15 w wattage on RadonAway RP140 Radon Fan. It is the lowest listed wattage in this set at 15 w.

  • Power Draw: RadonAway RP140 Radon Fan scores 100/100 on power draw, which carries 16% of the score; a visible edge for RadonAway RP140 Radon Fan for lower operating cost.
  • Published Noise Rating: A listed noise sones of 3 for RadonAway RP140 Radon Fan takes full credit for this dimension; useful support for buyers comparing RadonAway RP140 Radon Fan for quiet outdoor wall installs.
  • Outdoor Rating: An outdoor-rated listing for RadonAway RP140 Radon Fan lands at the top of this score lane; one reason RadonAway RP140 Radon Fan stands out for exterior fan mounting.

Check before you buy

  • RadonAway RP140 Radon Fan gives up ec motor for efficient variable-speed operation, landing at 0/100 where it counts.
  • RadonAway RP140 Radon Fan has no speed control, and tuning system pressure and noise feels it in the 0/100 on this line.
Details ▾
Display model
RP140
Cfm At 0 5 Iw
135
Duct Diameter (in)
4 in
Ec Motor
No
Max Flow
166
Max Pressure Iw
1.7
Noise Sones
3
Outdoor Rated
Yes
Speed Control
No
Wattage
15 W
Weight (Lighter Is Better)
4.3 lb
Last verified
2026-07-01
Compare all 20 ↑Specs checked July 1, 2026

#5 Overall

RadonAway GX4 Radon Fan

46/100

Havenrafthow it’s scored

Cfm At 0 5 Iw
63
Duct Diameter (in)
4 in
Ec Motor
No
Max Flow
148
Max Pressure Iw
4.3
Showing all 8 scored dimensions
Flow At 0.5 In. WC9
Maximum Static Pressure94
Power Draw41
Published Noise Rating77
EC Motor0
Outdoor Rating100
Speed Control0
Maximum Airflow27

Why it ranks here

RadonAway GX4 Radon Fan is the strongest fit given its 100/100 on made for buyers who put. RadonAway GX4 Radon Fan pulls ahead on maximum static pressure: 94/100, past RadonAway RP280 Radon Fan at 19/100; the RadonAway GX4 Radon Fan row lists 4.3 max pressure iw. RadonAway GX4 Radon Fan concedes power draw to RadonAway RP140 Radon Fan, 41/100 versus 100/100.

RadonAway GX4 Radon Fan and RadonAway RP280 Radon Fan are separated by 1 point; compare flow at 0.5 in. wc and maximum static pressure before choosing between them.

  • Maximum Static Pressure: A listed max pressure iw of 4.3 for RadonAway GX4 Radon Fan stays in the strong band here; a visible edge for RadonAway GX4 Radon Fan for tighter slabs and higher resistance systems.
  • Published Noise Rating: A listed noise sones of 4 for RadonAway GX4 Radon Fan keeps this dimension out of the weak band; helping RadonAway GX4 Radon Fan reach 46/100 for quiet outdoor wall installs.
  • Outdoor Rating: An outdoor-rated listing for RadonAway GX4 Radon Fan reaches the ceiling for this dimension; a visible edge for RadonAway GX4 Radon Fan for exterior fan mounting.

Check before you buy

  • RadonAway GX4 Radon Fan lacks ec motor; that is the catch for efficient variable-speed operation, and its 0/100 there reflects it.
  • RadonAway GX4 Radon Fan is the weaker pick on speed control for tuning system pressure and noise: no speed control, hence 0/100.
Details ▾
Display model
GX4
Cfm At 0 5 Iw
63
Duct Diameter (in)
4 in
Ec Motor
No
Max Flow
148
Max Pressure Iw
4.3
Noise Sones
4
Outdoor Rated
Yes
Speed Control
No
Wattage
60 W
Weight (Lighter Is Better)
6 lb
Last verified
2026-07-01
Compare all 20 ↑Specs checked July 1, 2026

#6 Overall

RadonAway RP280 Radon Fan

45/100

Havenrafthow it’s scored

Cfm At 0 5 Iw
220
Duct Diameter (in)
6 in
Ec Motor
No
Max Flow
334
Max Pressure Iw
2
Showing all 8 scored dimensions
Flow At 0.5 In. WC90
Maximum Static Pressure19
Power Draw0
Published Noise Rating65
EC Motor0
Outdoor Rating100
Speed Control0
Maximum Airflow92

Why it ranks here

RadonAway RP280 Radon Fan earns its slot when its 100/100 on best when flow at 0.5 is the priority. At 6 in, RadonAway RP280 Radon Fan takes the highest listed duct diameter in this set. It outscores Fantech RN4 Radon Fan on published noise rating, 65/100 over 7/100, with 4.5 noise sones on RadonAway RP280 Radon Fan.

RadonAway RP280 Radon Fan stays close to RadonAway GX4 Radon Fan with only 1 point between them, so flow at 0.5 in. wc then maximum static pressure is the first place to look for a practical difference.

  • Flow At 0.5 In. WC: A listed CFM at 0 5 iw of 220 for RadonAway RP280 Radon Fan stays in the strong band here; a visible edge for RadonAway RP280 Radon Fan for typical residential sub-slab systems.
  • Published Noise Rating: A listed noise sones of 4.5 for RadonAway RP280 Radon Fan holds enough credit on this score lane; one reason RadonAway RP280 Radon Fan stands out for quiet outdoor wall installs.
  • Outdoor Rating: An outdoor-rated listing for RadonAway RP280 Radon Fan reaches the top grade on this line; useful support for buyers comparing RadonAway RP280 Radon Fan for exterior fan mounting.

Check before you buy

  • The score gives up the most ground on power draw (91 W).
  • RadonAway RP280 Radon Fan needs scrutiny here because a 91 w wattage lands its power draw at 0/100.
Details ▾
Display model
RP280
Cfm At 0 5 Iw
220
Duct Diameter (in)
6 in
Ec Motor
No
Max Flow
334
Max Pressure Iw
2
Noise Sones
4.5
Outdoor Rated
Yes
Speed Control
No
Wattage
91 W
Weight (Lighter Is Better)
7.5 lb
Last verified
2026-07-01
Compare all 20 ↑Specs checked July 1, 2026

#7 Overall

Fantech RN4 Radon Fan

44/100

Havenrafthow it’s scored

Cfm At 0 5 Iw
240
Duct Diameter (in)
4 in
Ec Motor
No
Max Flow
356
Max Pressure Iw
2.3
Showing all 8 scored dimensions
Flow At 0.5 In. WC100
Maximum Static Pressure29
Power Draw8
Published Noise Rating7
EC Motor0
Outdoor Rating100
Speed Control0
Maximum Airflow100

Why it ranks here

Fantech RN4 Radon Fan carries the highest listed CFM at 0 5 iw of the lineup at 240. It scores 100/100 on flow at 0.5 in. WC, above Fantech Rn1 Radon Fan's 31/100; the Fantech RN4 Radon Fan row lists 240 CFM at 0 5 iw. At 356, Fantech RN4 Radon Fan takes the highest listed max flow in this set.

On flow at 0.5 in. wc, the shortlist barely separates Fantech RN4 Radon Fan from RadonAway RP280 Radon Fan; weigh flow at 0.5 in. wc against maximum static pressure for your own use before treating Fantech RN4 Radon Fan as clearly better.

  • Flow At 0.5 In. WC: A listed CFM at 0 5 iw of 240 for Fantech RN4 Radon Fan takes full credit for this dimension; useful support for buyers comparing Fantech RN4 Radon Fan for typical residential sub-slab systems.
  • Outdoor Rating: An outdoor-rated listing for Fantech RN4 Radon Fan takes full credit for this dimension; helping Fantech RN4 Radon Fan reach 44/100 for exterior fan mounting.
  • Maximum Airflow: A listed max flow of 356 for Fantech RN4 Radon Fan lands at the top of this score lane; a visible edge for Fantech RN4 Radon Fan for higher-flow mitigation layouts.

Check before you buy

  • Fantech RN4 Radon Fan has no ec motor, and efficient variable-speed operation feels it in the 0/100 on this line.
  • Fantech RN4 Radon Fan lacks speed control; that is the catch for tuning system pressure and noise, and its 0/100 there reflects it.
Details ▾
Display model
RN4
Cfm At 0 5 Iw
240
Duct Diameter (in)
4 in
Ec Motor
No
Max Flow
356
Max Pressure Iw
2.3
Noise Sones
7
Outdoor Rated
Yes
Speed Control
No
Wattage
85 W
Weight (Lighter Is Better)
8 lb
Last verified
2026-07-01
Compare all 20 ↑Specs checked July 1, 2026

How this ranking is scored

Each product in this table gets one 0–100 score computed from manufacturer sheets, retailer listings, and dated source records: the same weighted formula for all 20 radon mitigation fans, applied to 8 recorded fields per product. The four heaviest dimensions and their exact share of the total are shown here; the full weight table, source ledger, and score-band definitions live on the methodology page.

Havenraft does not conduct first-hand product tests. Scores synthesize published manufacturer and retailer records only, and every figure traces to a dated source. Marketing claims and retailer copy are excluded unless a published specification supports them.

Full methodology →

Heaviest scoring dimensions
Flow At 0.5 In. WC22%The scored range for listed cfm at 0 5 iw spans 45 to 240; higher numbers score better, with missing values held neutral.
Maximum Static Pressure20%Across the catalog, listed max pressure iw goes from 1.4 to 4.5; higher numbers score better, while a missing entry stays neutral.
Power Draw16%The scored range for listed wattage spans 15 W to 91 W; lower numbers score better, with missing values held neutral.
Published Noise Rating12%Published listings put noise sones between 3 to 7.3; lower numbers score better, and a missing value stays neutral.

Score bands80+ strong60–79 solidBelow 60 limited fit

Radon Mitigation Fans freshness timeline showing source retrieval dates and the separate regeneration date. Havenraft source ledger tracks radon mitigation fans with 6 retrieval records, retrieved 2026-07-01 to 2026-07-02. For radon mitigation fans, sources were retrieved 2026-07-01 to 2026-07-02; the page was regenerated 2026-07-09, a build date kept separate from the source retrieval dates. Source freshness ledger Dots are source retrieval dates; the amber marker is the separate regeneration date. SupplyHouse: retrieved 2026-07-01 RadonAway: retrieved 2026-07-02 Festa AMG Radon Fans: retrieved 2026-07-01 Festa Radon: retrieved 2026-07-01 Fantech: retrieved 2026-07-02 Scored product catalog: retrieved 2026-07-01 Regenerated 2026-07-09 2026-07-012026-07-09 Radon Mitigation Fans keeps retrieved and regenerated dates distinct.

Retrieved · Built

  1. Fantech2026-07-02Source record
  2. RadonAway2026-07-02Source record
  3. Festa AMG Radon Fans2026-07-01Source record
  4. Festa Radon2026-07-01Source record
  5. Scored product catalog2026-07-01Source record
Havenraft source ledger tracks radon mitigation fans with 6 retrieval records, retrieved 2026-07-01 to 2026-07-02.

Update history

  • Rankings rebuilt from the refreshed catalog: 20 radon mitigation fans re-scored on 8 published spec fields, flow at 0.5 in. wc first.

Common buying questions

What is the best radon mitigation fan?

Fantech Rn2EC Radon Fan holds the radon mitigation fan lead through flow at 0.5 in. wc at 61/100; its lowest visible score is power draw, 24/100.

How should I compare close alternatives?

Weigh close radon mitigation fan alternatives by comparing flow at 0.5 in. wc first, then the weakest flow at 0.5 in. wc score and the maximum static pressure details. A fixed radon mitigation fan runner-up label matters less than the published maximum static pressure specs behind the current filter state.

Are these radon mitigation fan rankings based on physical testing?

No first-hand testing. Flow at 0.5 in. wc and maximum static pressure come from published manufacturer and non-Amazon retailer specs, traced to dated records, and that is what drives this radon mitigation fan ranking. A missing spec never sinks a radon mitigation fan; unlisted values score neutral under the published rules.