QuietScore › Bathroom & Utility Fans › Greenheck SP-A70
Greenheck SP-A70 noise level
The Greenheck SP-A70 is quieter 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 | Greenheck |
|---|---|
| Model number | SP-A70 |
| Model name | SP |
| Category | Bathroom & Utility Fans |
| Sound level | 0.1 sones (≈7 dBA, approximate) |
| Airflow | 70 CFM |
| Efficiency | 5.1 CFM/W |
| Duct size | 6.0 inch diameter |
| Speeds | 1 |
| Integrated lighting | No |
| ENERGY STAR certified | Yes |
| On market since | 2010-01-01 |
| Markets | United States |
Similar bathroom & utility fans
| Model | Sones | ≈ dBA | Airflow | Efficiency | |
|---|---|---|---|---|---|
| Broan XB80=XB00HwithXB80F | 0.1 | 7 | 80 CFM | 13.8 CFM/W | specs |
| Tech Drive TD-BF-06 | 0.3 | 23 | 70 CFM | 4.6 CFM/W | specs |
| Delta SLM70D2 | 0.3 | 23 | 70 CFM | 7 CFM/W | specs |
| Win Air BPT14-13E | 0.3 | 23 | 70 CFM | 4.6 CFM/W | specs |
| QuFresh BC80 | 0.2 | 17 | 80 CFM | 4.9 CFM/W | specs |
Frequently asked questions
How many sones is the Greenheck SP-A70?
The Greenheck SP-A70 is certified at 0.1 sones in ENERGY STAR lab testing, which is approximately 7 dBA. That is near the threshold of human hearing — effectively silent in a normal room.
Is the Greenheck SP-A70 quiet?
At 0.1 sones, the Greenheck SP-A70 is quieter than 87% of the 811 certified bathroom & utility fans we track, and quieter than the category median of 0.7 sones.
How powerful is the Greenheck SP-A70?
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 5.1 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.