Ventilating Fans Specification Version 4.2

The ENERGY STAR Version 4.2 specification for ventilating fans was finalized on August 1, 2023. Current certifications will not be affected by these changes. Materials related to this revision process are provided below. Partners and other interested parties with questions or concerns regarding these materials or the revision process can contact Taylor Jantz-Sell, EPA, at Jantz-Sell.Taylor@epa.gov.

Ventilating Fans Final Version 4.2 Specification - April 22, 2024

ENERGY STAR Ventilating Fans Specification Version 4.2 Rev. April 2024 (PDF, 383.37 KB)

Ventilating Fans Final Version 4.1 - July 24, 2018

Ventilating Fans Final Version 4.1 Specification (PDF, 860 KB)
Ventilating Fans Final Version 4.1 Cover Letter (PDF, 115 KB)

ENERGY STAR Ventilating Fans Version 4.1 Limited Topic Proposal Comments - June 29, 2018

Ventilating Fans Version 4.1 Limited Topic Proposal Comment Response Matrix (PDF, 78 KB)
AHAM Comments (PDF, 144 KB)
HVI Comments (PDF, 144 KB)
S&P USA Comments (PDF, 260 KB)

ENERGY STAR Ventilating Fans Version 4.1 Limited Topic Proposal - June 15, 2018

ENERGY STAR Ventilating Fans Version 4.1 Limited Topic Proposal (PDF, 219 KB)

Ventilating Fans Draft Version 4.1 Stakeholder Comments - March 21, 2018

ENERGY STAR Ventilating Fans Draft Version 4.1 Comment Response Matrix (PDF, 94 KB)
American Aldes Ventilation Corporation Comments (PDF, 1.2 MB)
Association of Home Appliance Manufacturers Comments (PDF, 163 KB)
Home Ventilating Institute Comments (PDF, 132 KB)
Sicflux Comments (PDF, 8 KB)
Systemair Comments (PDF, 238 KB)

Ventilating Fans Draft Version 4.1 Webinar Slides – March 8, 2018

ENERGY STAR Ventilating Fans Draft Version 4.1 Webinar Slides (PDF, 1.1 MB)

Ventilating Fans Draft Version 4.1 - February 21, 2018

Ventilating Fans Draft Version 4.1 Cover Letter (PDF, 100 KB)
Ventilating Fans Draft Version 4.1 Specification (PDF, 428 KB)

ENERGY STAR Ventilating Fans Version 4.0 Specification (Rev. Oct-2017) – October 23, 2017

EPA updated Section 3Ab of the specification to clarify that bathroom and utility room fans, and in-line fans, with more than three speeds must be tested and meet the applicable efficacy and sounds requirements at their minimum and maximum speeds, and at a speed half-way in between those.

Ventilating Fans Program Requirements Version 4.0 (Rev. Oct-2017) (PDF, 604 KB)