He swam with face mask under, breathing through his snorkel and letting the camera hang.
Rick replaced his mouthpiece, cleared a little mist from his face mask, and led the way down.
It was easy to agree on the type of face mask, snorkel, and fins.
Near the forward end of the unit, a semirigid plastic tube was connected, leading up to the face mask.
Tom buckled on his equipment belt and adjusted the face mask.
"Back—safe—" The voice from behind the face mask was a rusty croak.
Rick had ordered lenses ground from the glass and had placed them in frames made to fit into a face mask.