Best Bathroom Exhaust Fans · head-to-head

Delta Breez GreenBuilder GBR80 vs Air King AK80

A sourced, side-by-side comparison. Delta Breez GreenBuilder GBR80 is cheaper at $103.9. Every spec and price links to its source.

Which is better: the Delta Breez GreenBuilder GBR80 or Air King AK80?

On the specs we track, they're closely matched. The Delta Breez GreenBuilder GBR80 is the cheaper at $103.9.

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Full spec sheet

marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.

Spec Delta Breez GreenBuilder GBR80 Air King AK80
US price $103.9 $115.86
BrandDelta ElectronicsAir King
Released
Airflow (CFM) 80 80
Noise sones 0.8 1.5
Max coverage area (sq ft) 100
Duct diameter (in) 4 4
Energy star certified Yes Yes
Motor type DC
Wattage (W) 10.5 27.6
Efficacy cfm per watt 7.6
Humidity sensor No No
Integrated light No No
Warranty years 3 5
Mount type ceiling-wall ceiling

Sources — Delta Breez GreenBuilder GBR80: deltabreez.com (verified 2026-07-13). Air King AK80: airkinglimited.com (verified 2026-07-13).

What's the difference between the Delta Breez GreenBuilder GBR80 and Air King AK80?

Where the two actually differ on the specs we track (4 of 12). Matching specs are omitted.

  • Noise sones: Delta Breez GreenBuilder GBR80 0.8 vs Air King AK80 1.5
  • Wattage (W): Delta Breez GreenBuilder GBR80 10.5 vs Air King AK80 27.6
  • Warranty years: Delta Breez GreenBuilder GBR80 3 vs Air King AK80 5
  • Mount type: Delta Breez GreenBuilder GBR80 ceiling-wall vs Air King AK80 ceiling

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