QuietScoreBathroom & Utility Fans › Air King SF5810

Air King SF5810 noise level

The Air King SF5810 is certified at 0.3 sones (≈23 dBA) — quieter than 75% 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.
0.3sones (certified)
≈23 dBAapproximate conversion
100 CFMairflow
9.6CFM per watt

The Air King SF5810 is quieter than the category median of 0.7 sones, and its 100 CFM rating makes it suitable for bathrooms up to roughly 100 sq ft.

Full specifications

BrandAir King
Model numberSF5810
Model nameSF5810
CategoryBathroom & Utility Fans
Sound level0.3 sones (≈23 dBA, approximate)
Airflow100 CFM
Efficiency9.6 CFM/W
Duct size4.00 inch diameter
Speeds1
Integrated lightingNo
ENERGY STAR certifiedYes
On market since2025-09-15
MarketsUnited States, Canada

Quieter alternatives with similar airflow

Model Sones ≈ dBA Airflow Efficiency
AUPU BF4-S10CL 0.1 7 100 CFM 9.5 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
Venco SP-LP0810W 0.1 7 100 CFM 10 CFM/W specs
Venco SP-LP0810WL 0.1 7 100 CFM 9.5 CFM/W specs

Similar bathroom & utility fans

Model Sones ≈ dBA Airflow Efficiency
VOTATEC VO-FN4W14-DC-3SPD 0.3 23 100 CFM 9.6 CFM/W specs
ACIQ ANPD100-3 ME 0.3 23 100 CFM 11.1 CFM/W specs
Akicon AK18CL1-B 0.3 23 100 CFM 9.6 CFM/W specs
Akicon AK18CL1-S 0.3 23 100 CFM 9.6 CFM/W specs
Akicon AK18CL1-W 0.3 23 100 CFM 9.6 CFM/W specs

Frequently asked questions

How many sones is the Air King SF5810?

The Air King SF5810 is certified at 0.3 sones in ENERGY STAR lab testing, which is approximately 23 dBA. That is near the threshold of human hearing — effectively silent in a normal room.

Is the Air King SF5810 quiet?

At 0.3 sones, the Air King SF5810 is quieter than 75% of the 811 certified bathroom & utility fans we track, and quieter than the category median of 0.7 sones.

How powerful is the Air King SF5810?

It moves 100 CFM, which is adequate for a bathroom of roughly 100 sq ft under the standard 1-CFM-per-square-foot guideline, at an efficiency of 9.6 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.