Go with purge. I’ve been diving for 4 yr. and I hate the thought of getting sea water in my mask and manully trying to drain it.
I’m buying an Aqualung Pacifica one window mask w/purge and from what I understand all you have to do is exhale. It’s $80.00 but well worth the money.
Whatever you do, do not take the mask of until you get out of the water or on to the boat. I just lost my $40 one window mask Sunday climbing into a boat with my mask in hand. DAH. LOL
So Purge Purge Purge all the way LOL. ;)