QuietScore › Bathroom & Utility Fans › PROJECT SOURCE 8772-70-PS
PROJECT SOURCE 8772-70-PS noise level
The PROJECT SOURCE 8772-70-PS is louder than the category median of 0.7 sones, and its 70 CFM rating makes it suitable for bathrooms up to roughly 70 sq ft.
Full specifications
| Brand | PROJECT SOURCE |
|---|---|
| Model number | 8772-70-PS |
| Model name | 8772-70-PS |
| Category | Bathroom & Utility Fans |
| Sound level | 2 sones (≈50 dBA, approximate) |
| Airflow | 70 CFM |
| Efficiency | 3.3 CFM/W |
| Duct size | 4.00 inch diameter |
| Speeds | 1 |
| Integrated lighting | No |
| ENERGY STAR certified | Yes |
| On market since | 2026-05-15 |
| Markets | United States, Canada |
Quieter alternatives with similar airflow
| Model | Sones | ≈ dBA | Airflow | Efficiency | |
|---|---|---|---|---|---|
| Greenheck SP-A70 | 0.1 | 7 | 70 CFM | 5.1 CFM/W | specs |
| Broan XB80=XB00HwithXB80F | 0.1 | 7 | 80 CFM | 13.8 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 | |
|---|---|---|---|---|---|
| Hampton Bay BF70HD | 2 | 50 | 70 CFM | 3.4 CFM/W | specs |
| VENTECHLATION BPT13-13EN3 | 2 | 50 | 70 CFM | 3.8 CFM/W | specs |
| VENTECHLATION BPT13-13EN-T | 2 | 50 | 70 CFM | 3.8 CFM/W | specs |
| Tech Drive TD-BF-03-1 | 2 | 50 | 70 CFM | 3.8 CFM/W | specs |
| Air King BFQ75 | 2 | 50 | 70 CFM | 3.4 CFM/W | specs |
Frequently asked questions
How many sones is the PROJECT SOURCE 8772-70-PS?
The PROJECT SOURCE 8772-70-PS is certified at 2 sones in ENERGY STAR lab testing, which is approximately 50 dBA. That is about the background level of a quiet office.
Is the PROJECT SOURCE 8772-70-PS quiet?
At 2 sones, the PROJECT SOURCE 8772-70-PS is quieter than 1% of the 811 certified bathroom & utility fans we track, and louder than the category median of 0.7 sones.
How powerful is the PROJECT SOURCE 8772-70-PS?
It moves 70 CFM, which is adequate for a bathroom of roughly 70 sq ft under the standard 1-CFM-per-square-foot guideline, at an efficiency of 3.3 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.