Ventilation: What you need to know

Governing Law and Regulations

Task-specific ventilation requirements: 29 CFR 1910.94

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Source-specific ventilation requirements: 29 CFR 1910 and the National Emission Standards for Hazardous Air Pollutants (NESHAP) 40 CFR 61 and 40 CFR 63

Regulatory Agencies

U.S. Department of Labor Occupational Safety and Health Administration (OSHA)

U.S. Environmental Protection Agency (EPA)

Industry Standards

The American Society of Heating Refrigeration and Air Conditioning Engineers (ASHRAE)

The Air Movement and Control Association (AMCA)

The American National Standards Institute (ANSI)

The National Fire Protection Association (NFPA)

The American Conference of Governmental Industrial Hygienists (ACGIH)

See ADDRESSES & CONTACTS for addresses and telephone numbers.


According to EPA, there is growing evidence that, in some instances, air inside buildings and homes is more polluted than the outdoor air in some larger, industrialized cities. This should be a significant concern considering that research has shown that people spend an overwhelming majority of their time indoors and exposed to indoor air pollution that may pose health risks.

A growing emphasis on energy efficiency over approximately the past 30 years has resulted in buildings that sealed much tighter to limit the infiltration of outdoor air. This, along with deferring maintenance to save money and the increasing number of consumer products that contain harmful chemicals, has led to deteriorating indoor air quality and more frequent complaints from building occupants.


The response of the occupants to the indoor air pollutants and other factors, such as climate, noise, light, etc., can be classified into one of the following categories:

  • Acute ...

>> Read more about Ventilation

Related Topics

Ventilation Resources

Checklists Ventilation Checklist

Ventilation Products

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