Thunder Bolt
Silly old bat
Fair play for getting the proper mask, most people don't.
It isn't just to protect others, you're also getting protection, that's written in the guidance from the WHO and CDC.
You've said before that you're immunocompromised, I'm double jabbed and I've had covid with mild symptoms. If you and I are stood next to each other I can't accept that you're wearing a filtration mask for my protection.
Vets wear masks to prevent infection being passed to animals. Noses harbour germs and viruses, which can be expressed with exhalation.