QuietScoreBathroom & Utility Fans › Delta 110LED-ADJ

Delta 110LED-ADJ noise level

The Delta 110LED-ADJ is certified at 0.4 sones (≈27 dBA) — quieter than 66% of the 811 bathroom & utility fans in the ENERGY STAR database. In practical terms it is about as quiet as rustling leaves; most people cannot hear it over ambient room noise.
0.4sones (certified)
≈27 dBAapproximate conversion
110 CFMairflow
8.3CFM per watt

The Delta 110LED-ADJ 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

BrandDelta
Model number110LED-ADJ
Model nameBreezSignature
CategoryBathroom & Utility Fans
Sound level0.4 sones (≈27 dBA, approximate)
Airflow110 CFM
Efficiency8.3 CFM/W
Duct size4 inch diameter
Speeds1
Integrated lightingYes
ENERGY STAR certifiedYes
On market since2018-09-19
MarketsUnited States, Canada

Quieter alternatives with similar airflow

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

Similar bathroom & utility fans

Model Sones ≈ dBA Airflow Efficiency
Panasonic RG-R811A 0.4 27 110 CFM 9.5 CFM/W specs
Panasonic RG-R811HA 0.4 27 110 CFM 9.5 CFM/W specs
Panasonic RG-R811LA 0.4 27 110 CFM 9.5 CFM/W specs
Panasonic RG-R811LHA 0.4 27 110 CFM 9.5 CFM/W specs
Panasonic RG-Y811SLA 0.4 27 110 CFM 10.2 CFM/W specs

Frequently asked questions

How many sones is the Delta 110LED-ADJ?

The Delta 110LED-ADJ 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 Delta 110LED-ADJ quiet?

At 0.4 sones, the Delta 110LED-ADJ 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 Delta 110LED-ADJ?

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 8.3 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.