Fully agree. I flew to Asia to visit relatives a few times and I always hated it if people spray their Eucalyptus oil into the air, because it seems to attack m

Fully agree. I flew to Asia to visit relatives a few times and I always hated it if people spray their Eucalyptus oil into the air, because it seems to attack my throat. Plus I'm not sure what it would help with/against? In general, anything that potentially degrades the air quality for other passengers and does not have any provable benefit should be prohibited. Ozone is an obvious candidate, given that it will most likely make Covid spread more, not less.