Ozone and UV Systems
Testing and certification for UV and ozone water treatment systems.
Do you need testing or certification for your UV or ozone system? NSF provides both services for drinking water, municipal water, recreational water, and wastewater applications.
Why choose NSF?
NSF works with public health officials, manufacturers and facility operators to evaluate products and protect human health. We develop and apply rigorous standards for ozone and ultraviolet (UV) systems across a wide range of water treatment applications.
Standards we certify to
Drinking Water:
- NSF/ANSI/CAN 60 – Drinking Water Treatment Chemicals: Health Effects.
- NSF/ANSI/CAN 61 – Drinking Water System Components: Health Effects.
- NSF/ANSI 55 – Ultraviolet Microbiological Water Treatment Systems.
Municipal Water Treatment Performance:
Public Drinking Water Equipment Performance Certification Program (PDWEP).
Recreational Water:
NSF/ANSI 50 – Equipment for Swimming Pools, Spas, Hot Tubs, and Other Recreational Water Facilities.
Wastewater:
NSF/ANSI 46 and NSF/ANSI 385 – Evaluation of Components and Devices Used in Wastewater Treatment Systems.
Partner with NSF for trusted testing and certification that ensures your UV and ozone systems meet the highest standards for safety and performance.
Ready to Get Certified by NSF?
Start your certification journey today.
What’s New with NSF
Information Systems Security Association (ISSA) Welcomes NSF’s Brian Schultz into the 2026 Hall of Fame
September 10, 2026Lifetime achievement recognition honors exceptional leadership and lasting contributions to the cybersecurity profession.NSF Welcomes Nicole Parent Haughey to Board of Directors
September 10, 2026NSF's appointment of Nicole supports the organization's continued focus on long-term growth and transformation.
NSF Launches Independent Certification Standard for Compact Products
August 25, 2026New third-party certification verifies products cutting materials and shipping impacts while maintaining safety and performance.
CELSIUS® Products Earn NSF Certified for Sport® Certification
August 20, 2026CELSIUS® has earned NSF Certified for Sport® certification for select products, including the CELSIUS VIBES line, reinforcing the brand’s commitment to quality, transparency and consumer trust.