…well, at least in this classic movie with some nice vintage scuba gear.
In this clip I edited for you, we see a frogwoman underwater and on the surface. And she needs her regulator to breathe on the surface too!
(click to enlarge)
And here is the video:
Solid scene underwater and with a scuba scene on the surface as a bonus!
The title of this movie is hidden in the title of the post 😉