An official website of the United States government.

We've made some changes to If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

Indoor Air Quality (IAQ)

Ventilation and Air Quality in Offices

This factsheet discusses the role of mechanical heating, ventilation and air conditioning systems in maintaining indoor air quality of commercial buildings such as offices, stores, and hotels. Topics include health problems associated with poor ventilation, ways of controlling pollution, ventilation standards and building codes, and various ventilation system problems and solutions. Provides measures for resolving air quality problems and sources for additional information. This document is only available online.

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.