QuietScoreBathroom & Utility Fans › Fantech RCS80L

Fantech RCS80L noise level

The Fantech RCS80L is certified at 1.2 sones (≈43 dBA) — quieter than 25% of the 819 bathroom & utility fans in the ENERGY STAR database. In practical terms it is noticeable but unobtrusive — quieter than a typical conversation.
1.2sones (certified)
≈43 dBAapproximate conversion
80 CFMairflow
5.1CFM per watt

The Fantech RCS80L 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

BrandFantech
Model numberRCS80L
Model nameRCS
CategoryBathroom & Utility Fans
Sound level1.2 sones (≈43 dBA, approximate)
Airflow80 CFM
Efficiency5.1 CFM/W
Duct size4.00 inch depth X 0.00 inch width
Speeds1
Integrated lightingYes
ENERGY STAR certifiedYes
On market since2024-07-31
MarketsUnited 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
AUPU V4-10HF 0.1 7 100 CFM 9.5 CFM/W specs

Similar bathroom & utility fans

Model Sones ≈ dBA Airflow Efficiency
Air King LEDAK80 1.2 43 80 CFM 3.5 CFM/W specs
S&P PCLP80 1.2 43 80 CFM 4.7 CFM/W specs
Broan (Canada) EZ80C 1.1 41 80 CFM 3.7 CFM/W specs
HomeWerks Worldwide 7117-01-BN 1.1 41 80 CFM 4.6 CFM/W specs
HomeWerks Worldwide 7117-01-WH 1.1 41 80 CFM 4.6 CFM/W specs

Frequently asked questions

How many sones is the Fantech RCS80L?

The Fantech RCS80L is certified at 1.2 sones in ENERGY STAR lab testing, which is approximately 43 dBA. That is noticeable but unobtrusive — quieter than a typical conversation.

Is the Fantech RCS80L quiet?

At 1.2 sones, the Fantech RCS80L is quieter than 25% of the 819 certified bathroom & utility fans we track, and louder than the category median of 0.7 sones.

How powerful is the Fantech RCS80L?

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 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 2026-07-27. The dBA figure is an approximate conversion from sones — see our methodology.