QuietScoreBathroom & Utility Fans › AUPU BF6-S13C

AUPU BF6-S13C noise level

The AUPU BF6-S13C is certified at 0.1 sones (≈7 dBA) — quieter than 87% of the 811 bathroom & utility fans in the ENERGY STAR database. In practical terms it is near the threshold of human hearing — effectively silent in a normal room.
0.1sones (certified)
≈7 dBAapproximate conversion
110 CFMairflow
9.7CFM per watt

The AUPU BF6-S13C 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

BrandAUPU
Model numberBF6-S13C
Model nameBF6-S13C
CategoryBathroom & Utility Fans
Sound level0.1 sones (≈7 dBA, approximate)
Airflow110 CFM
Efficiency9.7 CFM/W
Duct size4.00 inch diameter
Speeds3
Integrated lightingNo
ENERGY STAR certifiedYes
On market since2026-02-10
MarketsUnited States, Canada

Similar bathroom & utility fans

Model Sones ≈ dBA Airflow Efficiency
Panasonic Eco Solutions FV-0811RQ1 0.1 7 110 CFM 5.1 CFM/W specs
Panasonic Eco Solutions FV-0811RQC1 0.1 7 110 CFM 4.9 CFM/W specs
Fantech SC50-80-110 (484313) 0.1 7 110 CFM 10.7 CFM/W specs
Fantech SC50-80-110H (494140) 0.1 7 110 CFM 10.7 CFM/W specs
Fantech SC50-80-110L (484314) 0.1 7 110 CFM 10.7 CFM/W specs

Frequently asked questions

How many sones is the AUPU BF6-S13C?

The AUPU BF6-S13C 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 BF6-S13C quiet?

At 0.1 sones, the AUPU BF6-S13C 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 AUPU BF6-S13C?

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 2026-06-13. The dBA figure is an approximate conversion from sones — see our methodology.