Cathal Crowe (Clare, Fianna Fail) | Oireachtas source

I turn to the issue of high-efficiency particulate air, HEPA, filters on aeroplanes. We have heard that 40% of the air is filtered, while the rest is clean air from the atmosphere outside. Is it safe to be on an aeroplane if the person has been tested and is Covid free when getting on? The person may have taken a test at Charles de Gaulle Airport or wherever. Is an aeroplane a safe environment insofar as Covid transmission is concerned? Dr. De Gascun might be better placed to respond. Is it safe to be in that shell of the fuselage of an aeroplane for two hours?