Han wrote:

Ozone is a strong oxidant, and a gas. That's how it destroys odors,
and also why it is an irritant, especially for the lungs. If your
wifeis allergic to cigarette smoke, ozone might NOT be very good for
her, unless the ozone is left to react with the smoke and then
immediately exhausted.


It's not necessary to exhaust ozone. It decomposes into plain oxygen in
minutes.