SpecDirectory

BF4-10L

AUPU · Ventilating Fan

ENERGY STAR CertifiedVentilating Fans →
Airflow

100CFM

Efficacy

3.9CFM/W

Sound Level

0.8sones

Type

Bathroom/Utility Room

Low efficacy

AUPU BF4-10L: efficacy 3.9 CFM/W, lower than 82% of ventilating fans (category median 4.7 CFM/W).

Efficacy: worse than 94% of the 439 comparable models within 10% of this size. Their median is 6.1 CFM/W.

Where this model sits

Airflow100CFM
50median 110750
Efficacy3.9CFM/W
2.9median 4.716.7

Lower than 82% of ventilating fans.

The AUPU BF4-10L is a 100 CFM ventilating fan. At 3.9 CFM/W it ranks in the bottom 17% of the 1,010 certified ventilating fans models. Among similar-sized ventilating fans (within 10% of its size), it is less efficient than the peer median of 6.1 CFM/W. In this size range, comparable Delta models average 8.7 CFM/W and Panasonic models average 8.1 CFM/W.

Specifications

Performance
Airflow100CFM
Efficacy3.9CFM/W
Sound Level0.8sones
Number of Speeds1
Installation
Unit TypeBathroom/Utility Room
Duct Size4.00 inch diameter
Airflow at 0.25 in w.g.79.8CFM
Sound at 0.25 in w.g.0.9sones
All 16 specifications
Lighting
Includes LightingYes
Ships with ENERGY STAR LampNo
Identifiers
Model NumberBF4-10L
ENERGY STAR IDES_1040217_BF4-10L_05272026000000_1008893
PartnerAUPU Intelligent Technology Corporation Limited
Date Qualified2026-05-27
Available From2026-06-01
MarketsUnited States, Canada

Documentation

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