We are very excited to be launching the new OHAO website.  We hope this new website will provide a better experience for both members and the general public.

Some areas of the site are still under construction but we are looking forward to providing more content and useful information in the future.

Registration will be opening soon for the OHAO Spring Symposium and AGM on March 23, 2023.  The event will take place virtually only on the Zoom platform.

OHAO recently co-hosted a series of webinars with the Canadian Aerosol Transmission Coalition (CATC) and you can access the videos and presentations on the CATC website.

We plan on holding an in-person event again at CHSI in Mississauga for the Fall PDC and Symposium.  More details will be available soon.