QuietScore › Bathroom & Utility Fans › Dayton 3DPE4B
Dayton 3DPE4B noise level
The Dayton 3DPE4B is quieter than the category median of 0.7 sones, and its 90 CFM rating makes it suitable for bathrooms up to roughly 90 sq ft.
Full specifications
| Brand | Dayton |
|---|---|
| Model number | 3DPE4B |
| Model name | 3DPE4B |
| Category | Bathroom & Utility Fans |
| Sound level | 0.4 sones (≈27 dBA, approximate) |
| Airflow | 90 CFM |
| Efficiency | 5.5 CFM/W |
| Duct size | 6.0 inch diameter |
| Speeds | 1 |
| Integrated lighting | No |
| ENERGY STAR certified | Yes |
| On market since | 2009-01-10 |
| Markets | United States |
Quieter alternatives with similar airflow
| Model | Sones | ≈ dBA | Airflow | Efficiency | |
|---|---|---|---|---|---|
| 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 |
| Broan XB80=XB00HwithXB80F | 0.1 | 7 | 80 CFM | 13.8 CFM/W | specs |
| Greenheck SP-LP0810W | 0.1 | 7 | 100 CFM | 10 CFM/W | specs |
| Greenheck SP-LP0810WL | 0.1 | 7 | 100 CFM | 9.5 CFM/W | specs |
Similar bathroom & utility fans
| Model | Sones | ≈ dBA | Airflow | Efficiency | |
|---|---|---|---|---|---|
| VOTATEC VO-FN4W25-AC-80 | 0.4 | 27 | 80 CFM | 3.5 CFM/W | specs |
| AERO PURE ABF80G15W | 0.4 | 27 | 80 CFM | 4.7 CFM/W | specs |
| AERO PURE ABF80G16W | 0.4 | 27 | 80 CFM | 4.7 CFM/W | specs |
| Air King AK100D | 0.4 | 27 | 100 CFM | 3.8 CFM/W | specs |
| Air King LEDAK100D | 0.4 | 27 | 100 CFM | 3.8 CFM/W | specs |
Frequently asked questions
How many sones is the Dayton 3DPE4B?
The Dayton 3DPE4B is certified at 0.4 sones in ENERGY STAR lab testing, which is approximately 27 dBA. That is about as quiet as rustling leaves; most people cannot hear it over ambient room noise.
Is the Dayton 3DPE4B quiet?
At 0.4 sones, the Dayton 3DPE4B is quieter than 66% of the 811 certified bathroom & utility fans we track, and quieter than the category median of 0.7 sones.
How powerful is the Dayton 3DPE4B?
It moves 90 CFM, which is adequate for a bathroom of roughly 90 sq ft under the standard 1-CFM-per-square-foot guideline, at an efficiency of 5.5 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.