Wearing a Covid19 mask in a classroom is not default normal. The following video offers no advice on what Covid mask to wear from a health and safety perspective. No advice of that kind is in any way intended and you are encouraged to follow professional advice offered by the National Health Service in choice of mask in different settings and contexts.
Different types of Covid mask can have different impacts on us from a teaching and learning point of view. And we are all different. Yet there are certain effects and possibilities offered from the different masks available.