Air Quality Regulators in the U.S.A.
Occupational Health & Safety Act (OSHA) 
The Occupational Health & Safety Act is a United States federal law that, among other things, regulates indoor air quality for all workplaces. OSHA publishes specific standards for ventilation and control of airborne contaminants, and offers guidance on other indoor air quality issues through “letters of interpretation”. California, New Jersey, and Washington have state-specific indoor air quality regulations. All Diversitech fume extractors, downdraft tables, and dust collectors are designed and engineered to be 100% OSHA compliant.
For more information on OSHA visit:
- OSHA Indoor Air Quality: Frequently Asked Questions
- OSHA standards on Welding, Cutting and Brazing
- OSHA Permissible Exposure Limits
- Combustible Dust: An Explosion Hazard
National Fire Protection Association (NFPA)
The National Fire Protection Association is an international non-profit agency that advocates adoption of over 300 harmonized codes and standards by all levels of government worldwide. Diversitech's complete line of wet downdraft tables and wet dust collectors are recommended for combustible dust by these NFPA standards:
- NFPA 61: Standard for the prevention of fires and dust explosions in agricultural and food processing facilities
- NFPA 484: Standard for Combustible Metals
- NFPA 654: Standard for the prevention of Fire and Dust Explosion from the Manufacturing, Processing, and Handling of Combustible Particulate Solids
- NFPA 655: Standard for prevention of sulfur fires and explosions
- NFPA 664: Standard for the prevention of Fire and Dust Explosion in Wood Processing and Woodworking Facilities
Chemical Safety Board (CSB)
The U.S. Chemical Safety and Hazard Investigation Board is an independent US Federal agency which investigates industrial chemical accidents.
- Investigation Report: Combustible Dust Hazard Study
- AL Solutions Fatal Dust Explosion
- Imperial Sugar Company Dust Explosion and Fire
- Hayes Lemmerz Dust Explosions and Fire
- West Pharmaceutical Services Dust Explosion and Fire
Environmental Protection Agency (EPA)
The United States Environmental Protection Agency is an agency of the United States federal government that, among other things, protects human health and the environment. The agency also works with industries and all levels of government in a wide variety of voluntary pollution prevention programs and energy conservation efforts. The EPA enforces the Ckean Air Act which regulates air pollution and industrial emissions in the United States.
EPA regulations are particularly important when companies are researching wether or not they are allowed to exhaust pollutants outside their facilities or if they have to filter the air first. The EPA also enfroces laws on the disposal of solid and liquid hazardous waste.