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 IOA membership in Europe, Africa, Asia and Australasia.
News
▶ 25th WORLD CONGRESS Virtual event, 30 August - 3 September 2021
Call for abstracts is running till 15 May 2021.

▶ Webinar series
and related epidemics
- State of knowledge, COVID-19 context / June 2021
- Air and surfaces decontamination
- Water application
- Implementation
- Comparison and coupling with other disinfectants
▶ Book publishing
Removal of microcontaminants in wastewaters
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
▶ Highly relevant articles on ozone applications against COVID-19 are published in Ozone: Science & Engineering Journal. Discover them.
Some articles with free access
– Ozone: A Potential Oxidant for COVID-19 Virus (SARS-CoV-2)
– Effectiveness of Ozone Gas on Airborne Virus Inactivation in Enclosed Spaces: A Review Study

▶ The subscription for membership to IOA for year 2021 is open. Apply by clicking here.
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
▶ 24th IOA Ozone World Congress & Exhibition: 20-25 October 2019 in Nice (France).
> Download the Programme & Book of abstracts.
> Download the Proceedings Order form.
▶ Video Teaching Project Ozone in Medicine by R. Viebahn-Haensler
Free access for IOA members. Ask your code