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International Ozone 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.
What's On
News
Event
IOA WORLD CONGRESS 2027
28 June - 02 July, Paris, France
SAVE THE DATES
May 2026
Publication
Ozone: Science & Engineering Journal
Volume 48 - issue 2 (2026).
Login as a member for online access.
Discover the content >>
March 2026
Webinar
Corona, long/post covid- and post vaccine syndrome
Prevention and convalescence by low-dose medical ozone. An update.
Description >> Replay available >>
September 16, 2025
Book Publishing
Ozone in Medicine: The low-Dose Ozone Concept.
Basics, Guidelines and Treatment Concepts.
By R. Viebahn-Hänsler & O.S. León Fernández
Order >>
January 2026
Training
Ozonation for water treatment
2-day session by IOA experts.
Next session May 28-29 for Suez.
Upon request (in French or English).
May 2026
IOA Events
Join our international conferences, workshops, and exhibitions organized by our Regional Groups to solve the most pressing current issues.
In addition to its biennial World Congress, IOA organises events on topics of major interest in:
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Environmental and human health protection (water, air, soil and waste purification).
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Industry solutions for production, purification and depollution.
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Medical therapy.
Membership Benefits
Membership in IOA gives you the opportunity to join a global network of professionals and access exclusive resources to advance your work in ozone science.
Get the latest information
On research topics, technologies under development, new applications and equipment through publications and events with discounts on rates.
Meet colleagues and specialists
Collaborate with experts in your field to share experiences, debate positions, and establish valuable business contacts via the IOA network.
Contribute to extend knowledge
About ozone and related oxidants by participating in conferences, writing papers for publication, and engaging in key discussions.
Take part in programs
Engage in programs designed for the wide admission of potentialities offered by advanced ozone-based technologies across industries.
Get in Touch
We are here to help you. Reach out to us via any of the channels below.
Call Us
+33 (0)549 454 454
Address
7 rue Marcel Doré - Bât. B16 86000 POITIERS (FRANCE)
Send Us A Mail
ioa@esip.univ-poitiers.fr