QuietScore › Bathroom & Utility Fans › AUPU B6-11HF
AUPU B6-11HF noise level
The AUPU B6-11HF is quieter than the category median of 0.7 sones, and its 110 CFM rating makes it suitable for bathrooms up to roughly 110 sq ft.
Full specifications
| Brand | AUPU |
|---|---|
| Model number | B6-11HF |
| Model name | BF6-S13CL |
| Category | Bathroom & Utility Fans |
| Sound level | 0.1 sones (≈7 dBA, approximate) |
| Airflow | 110 CFM |
| Efficiency | 9.7 CFM/W |
| Duct size | 4.00 inch diameter |
| Speeds | 3 |
| Integrated lighting | Yes |
| ENERGY STAR certified | Yes |
| On market since | 2026-06-19 |
| Markets | United States, Canada |
Similar bathroom & utility fans
| Model | Sones | ≈ dBA | Airflow | Efficiency | |
|---|---|---|---|---|---|
| AERO PURE ABF110DHL5W | 0.1 | 7 | 110 CFM | 7.4 CFM/W | specs |
| AERO PURE ABF110DHL6W | 0.1 | 7 | 110 CFM | 7.4 CFM/W | specs |
| AUPU AV0511DSL3 | 0.1 | 7 | 110 CFM | 7.4 CFM/W | specs |
| AUPU BF6-S13C | 0.1 | 7 | 110 CFM | 9.7 CFM/W | specs |
| AUPU BF6-S13CL | 0.1 | 7 | 110 CFM | 9.7 CFM/W | specs |
Frequently asked questions
How many sones is the AUPU B6-11HF?
The AUPU B6-11HF 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 AUPU B6-11HF quiet?
At 0.1 sones, the AUPU B6-11HF is quieter than 88% of the 819 certified bathroom & utility fans we track, and quieter than the category median of 0.7 sones.
How powerful is the AUPU B6-11HF?
It moves 110 CFM, which is adequate for a bathroom of roughly 110 sq ft under the standard 1-CFM-per-square-foot guideline, at an efficiency of 9.7 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 2026-07-27. The dBA figure is an approximate conversion from sones — see our methodology.