A better analogy of letting people eat and drink on a flight, so not wearing a mask at all time, would be to completely disable filtering on the firewall for a

A better analogy of letting people eat and drink on a flight, so not wearing a mask at all time, would be to completely disable filtering on the firewall for a few minutes every hour. Some people do dry fast, neither drink nor eat, for 24 hours straight with no negative effect. Can people who care so much about COVID they are ready to ban people from flying for the rest of their life, BUT they cannot not bear the inconvenience of not eat nor drink for a few hours?