QuietScore › Bathroom & Utility Fans › RAB CEP10SNL
RAB CEP10SNL noise level
The RAB CEP10SNL is louder 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 | RAB |
|---|---|
| Model number | CEP10SNL |
| Model name | Bathroom Exhaust Fans |
| Category | Bathroom & Utility Fans |
| Sound level | 0.8 sones (≈37 dBA, approximate) |
| Airflow | 110 CFM |
| Efficiency | 4.1 CFM/W |
| Duct size | 4.00 inch diameter |
| Speeds | 2 |
| Integrated lighting | Yes |
| ENERGY STAR certified | Yes |
| On market since | 2026-09-21 |
| Markets | United States |
Quieter alternatives with similar airflow
| 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 B6-11HL1 | 0.1 | 7 | 110 CFM | 9.7 CFM/W | specs |
| AUPU B6-11HR | 0.1 | 7 | 110 CFM | 9.7 CFM/W | specs |
Similar bathroom & utility fans
| Model | Sones | ≈ dBA | Airflow | Efficiency | |
|---|---|---|---|---|---|
| AUPU B6-11L1 | 0.8 | 37 | 110 CFM | 3.8 CFM/W | specs |
| AUPU BF6-11 | 0.8 | 37 | 110 CFM | 3.9 CFM/W | specs |
| AUPU BF6-11L | 0.8 | 37 | 110 CFM | 3.8 CFM/W | specs |
| Broan RB110L1 | 0.8 | 37 | 110 CFM | 3.6 CFM/W | specs |
| Revent RVS110 ME | 0.8 | 37 | 110 CFM | 12.3 CFM/W | specs |
Frequently asked questions
How many sones is the RAB CEP10SNL?
The RAB CEP10SNL is certified at 0.8 sones in ENERGY STAR lab testing, which is approximately 37 dBA. That is comparable to a quiet modern refrigerator humming in the next room.
Is the RAB CEP10SNL quiet?
At 0.8 sones, the RAB CEP10SNL is quieter than 43% of the 840 certified bathroom & utility fans we track, and louder than the category median of 0.7 sones.
How powerful is the RAB CEP10SNL?
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 4.1 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 2026-10-26. The dBA figure is an approximate conversion from sones — see our methodology.