Residential Ventilating Fans


Residential ventilating fans include bathroom exhaust fans utility room fans.


There are no national standards for residential ventilating fans. In May 2018, Vermont adopted state standards for ventilation fans based on ENERGY STAR Version 3.2, which was in effect from 2012 until Version 4.0 took effect in 2015. (The ENERGY STAR specification also includes kitchen range hoods, which are not covered by the Vermont standards.) The efficiency specifications for ventilation fans in ENERGY STAR Version 3.2 are equivalent to those in the 2015 International Energy Conservation Code (IECC). According to EPA, ventilation fans meeting the ENERGY STAR specification are not only more efficient than standard models but are also quieter and last longer. Ventilation fans meeting ENERGY STAR Version 3.2 on average consume about 60% less energy than standard fans by using more-efficient motors and improved blade designs.

In 2019, Colorado and Washington adopted the ventilation fan standards, effective in 2021.


As of 2014, about 37% of total shipments of ventilation fans met ENERGY STAR Version 3.2.


Federal Date States
2022 DC Standard Effective
2022 MA Standard Effective
2021 MA Standard Adopted
2021 WA Standard Effective
2021 CO Standard Effective
2020 DC Standard Adopted
2020 VT Standard Effective
2019 WA Standard Adopted
2019 CO Standard Adopted
2018 VT Standard Adopted

Timeline reflects state standards from 2001 to present; federal standards from inception to present.