Association
The only association that gathers over 1000 scientific and technical members around fundamental, engineering and applied aspects of oxidation technologies involving ozone or any related oxidants for any purpose.
The EA3G group of IOA manages the IOA membership and particularly develops activities in Europe, Africa, Asia and Australasia.
▶Subscribe for membership to IOA for year 2025.
And take part in all activities.
News
▶ Next Webinar
Prevention and convalescence by low-dose medical ozone. An update.
▶ 27th World Congress and Exhibition
August 25-29, 2025 | Omni Atlanta at Centennial Park, Georgia (USA)
Membership benefits
Membership in IOA gives you the opportunity to:
▶ Get the latest information on research topics, current issues, technologies under development, new applications and equipments in connection with ozone and derived or comparable oxidants through publications and events with discounts on rates
▶ Meet colleagues and specialists working in your interest fields, collaborate with them to share experiences and debate positions, establish business contacts via IOA network.
▶ Contribute to extend knowledge about ozone and related oxidants, participating at conferences, writing papers for publication.
▶ Take part in programs for a wide admission of potentialities offered by ozone-based technologies.
What's on
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IOA Events
In addition to its biennal World Congress, IOA organises each year through its three Regional Groups international conferences, workshops and exhibitions on topics of major interest for solving current issues in:
- ▶ Environmental and human health protection (water, air, soil and waste purification)
- ▶ Industry solutions for production, purification and depollution.
- ▶ Medical therapy and facility safety.
Latest publications
▶ Ozone: Science & Technologies journal (OS&E) volume 47 issue 3, 2025.
Login as IOA member to get access online.
▶ EA3G2024 International Conference & Exhibition
27-29 November 2024, Porto (Portugal)

▶ Webinar series
Replays of past webinars
> Ozone in Medicine. Prevention and Convalescence in Virus Diseases- Inactivation of SARS-CoV-2 and other viruses., by Renate VIEBAHN on 18 November 2021.
> Register for access to the replay
> Ozone inactivation of SARS-CoV-2 and other viruses, by Jean-Pierre DUGUET on 8th July 2021.