Where I lifeguarded a few years back masks were not allowed. We were told it was because if you had to do CPR and put a mask on the guy it would interfere and every second counts (and you know how those things can some times kind of suction to your face pretty good). Anyways, it was a new pool at the time and a lot of people did not like this rule at all, we had an older gentleman who fought about it and tried to bring his mask in every time he came in hoping none of the guards would notice. I think the aquatics director finally agreed that if it was an experienced diver (not sure how she would be able to prove that) they could wear the mask, if it was a child or someone who didn't know what they were doing, they couldn't do it.
Where I lifeguarded a few years back masks were not allowed. We were told it was because if you had to do CPR and put a mask on the guy it would interfere and every second counts (and you know how those things can some times kind of suction to your face pretty good). Anyways, it was a new pool at the time and a lot of people did not like this rule at all, we had an older gentleman who fought about it and tried to bring his mask in every time he came in hoping none of the guards would notice. I think the aquatics director finally agreed that if it was an experienced diver (not sure how she would be able to prove that) they could wear the mask, if it was a child or someone who didn't know what they were doing, they couldn't do it.