QuietScore › Bathroom & Utility Fans › Delta GBR80
Delta GBR80 noise level
The Delta GBR80 is louder than the category median of 0.7 sones, and its 80 CFM rating makes it suitable for bathrooms up to roughly 80 sq ft.
Full specifications
| Brand | Delta |
|---|---|
| Model number | GBR80 |
| Model name | Delta/BreezGreenBuilder |
| Category | Bathroom & Utility Fans |
| Sound level | 0.8 sones (≈37 dBA, approximate) |
| Airflow | 80 CFM |
| Efficiency | 9.5 CFM/W |
| Duct size | 4 inch diameter |
| Speeds | 1 |
| Integrated lighting | No |
| ENERGY STAR certified | Yes |
| On market since | 2016-07-01 |
| Markets | United States, Canada |
Quieter alternatives with similar airflow
| Model | Sones | ≈ dBA | Airflow | Efficiency | |
|---|---|---|---|---|---|
| Broan XB80=XB00HwithXB80F | 0.1 | 7 | 80 CFM | 13.8 CFM/W | specs |
| Greenheck SP-A70 | 0.1 | 7 | 70 CFM | 5.1 CFM/W | specs |
| Greenheck SP-A90L | 0.1 | 7 | 99 CFM | 6.1 CFM/W | specs |
| AUPU BF4-S10CL | 0.1 | 7 | 100 CFM | 9.5 CFM/W | specs |
| Greenheck SP-LP0810W | 0.1 | 7 | 100 CFM | 10 CFM/W | specs |
Similar bathroom & utility fans
| Model | Sones | ≈ dBA | Airflow | Efficiency | |
|---|---|---|---|---|---|
| Nutone AER80LWH | 0.8 | 37 | 80 CFM | 3.5 CFM/W | specs |
| Nutone AERN80LWH | 0.8 | 37 | 80 CFM | 3.5 CFM/W | specs |
| Delta 80F | 0.8 | 37 | 80 CFM | 9.5 CFM/W | specs |
| Delta 80F-DGL | 0.8 | 37 | 80 CFM | 9.5 CFM/W | specs |
| Delta 80HLED | 0.8 | 37 | 80 CFM | 7.3 CFM/W | specs |
Frequently asked questions
How many sones is the Delta GBR80?
The Delta GBR80 is certified at 0.8 sones in ENERGY STAR lab testing, which is approximately 37 dBA. That is comparable to a quiet modern refrigerator humming in the next room.
Is the Delta GBR80 quiet?
At 0.8 sones, the Delta GBR80 is quieter than 44% of the 811 certified bathroom & utility fans we track, and louder than the category median of 0.7 sones.
How powerful is the Delta GBR80?
It moves 80 CFM, which is adequate for a bathroom of roughly 80 sq ft under the standard 1-CFM-per-square-foot guideline, at an efficiency of 9.5 CFM per watt.
Data provenance: Sound levels are certified lab measurements (sones) reported in the U.S. EPA ENERGY STAR certified products dataset — not manufacturer marketing claims. Source: ENERGY STAR Certified Ventilating Fans (US EPA), last fetched 2026-06-13. The dBA figure is an approximate conversion from sones — see our methodology.