Ask the Expert: Ozonated Sanitization for Pure Water

Discover how ozone sanitization offers a sustainable, cost-effiective alternative to heat and chemical methods for pure water systems. Learn about METTLER TOLEDO Thornton’s pureO3™ sensor, which ensures compliance and reliable real-time ozone analysis.
Dec. 19, 2025

The Ask the Expert content piece discusses the advantages of ozone sanitization in pharmaceutical pure water systems compared to traditional heat and chemical methods. Ozone is highlighted as an effective sanitizer, capable of breaking down complex organic compounds and rapidly destroying biofilms, which are often challenging to eliminate. The method is also praised for its sustainability, using significantly less energy than heat sanitization and avoiding harmful chemical residues.

METTLER TOLEDO's pureO3 sensor is emphasized as a critical tool for ensuring regulatory compliance by providing reliable, real-time ozone measurements without requiring frequent calibration. PureO3 helps protect product integrity and process control by detecting even trace ozone levels.

Key learning points:

  • Ozone sanitization is a powerful and rapid method for eliminating biofilms and biological contaminants.
  • It is more energy-efficient and environmentally friendly than heat or chemical sanitization.
  • Reliable ozone analytics are essential for ensuring regulatory compliance and protecting product integrity.
  • The pureO3 sensor offers stable, accurate, and immediate ozone detection, enhancing process control.