Our Zero Ozone Verification Program reaches beyond enforced limits to ensure that an air cleaner’s ozone emission is below the federal requirements in the United States, including those from the FDA, NIOSH, CARB, EPA, and OSHA

Consumers today are increasingly health-conscious, leading to a rise in product transparency and federal regulations. Gaining momentum in a call for transparency are products producing ozone. While ozone is a naturally occurring substance, inhaling it beyond acceptable, regulated limits can be dangerous to a person's health. Multiple organizations recommend strict protocol surrounding the manufacturing and use of air cleaners producing ozone.

Assisting manufacturers of air cleaner products, our Zero Ozone Verification program can:

  • Demonstrate a product meets emission concentration limits of .005 ppm or below
  • Mark verified products as tested to one of the most stringent ozone emissions standards available in the USA, creating consumer confidence in your product.
  • Provide publicly recognized certification for testing on air cleaner products from a Nationally Recognized Testing Laboratory (NRTL); all certificates can be found on our Sustainability Certification Directory


Intertek’s Zero Ozone Verification program equates “Zero Ozone” as generating an ozone emission concentration of .005 ppm (5 ppb) or less. Products with this designation meet or exceed all other nationally recognized and/or enforced certification programs. Product testing is required every three years, with annual surveillance, unless a qualifying product change takes place.

Regulated Emission Standards in the United States & Intertek's Zero Ozone Verification Program

Maximum Acceptable
Emission/Exposure Limit
Mandatory Regulation
U.S. Food & Drug Administration (FDA) .05ppm (50 ppb) Yes, to sell into USA
California Air Resources Board (CARB) .05 ppm (50 ppb) Yes, to sell into California—even required via ecommerce
Occupational Safety & Health Administration (OSHA) .10ppm per 8 hours Yes, for use in USA
National Institute of Occupational Safety and Health (NIOSH) .10ppm per 8 hours      No, recommendation only
Intertek Sustainability Zero Ozone Verification Program .005 ppm (5 ppb) No, but exceeds mandatory regulations

Note: consumers must explicitly follow the directions from manufacturers regarding use of air cleaner products. Even certified products can be harmful if not used properly.

Contact an Expert

Visit the Germicidal Products webpage to learn about our services for these products, including: Ultraviolet (UV and UV-A, UV-B, UV-C) spectrum testing; Efficacy Testing for Anti-Viral, Anti-Bacterial, and Anti-Microbial properties; Photobiological testing; Photometric & overall performance testing; Emissions & Immunity testing; ETL Certification to global safety standards, and more.

Contact Intertek