Oh, dear god. I paused this scene from a car commercial to get a closer look at this couple and their dive gear, and what I see makes me twitch.
The girl's tank is mounted backward, so the first-stage regulator is likewise backward. She's gonna bash her head on the yoke knob. Hard. Even worse, that orientation routes both her primary second-stage regulator hose and her backup reg hose to her left side; the regs will be upside down when she tries to use them, and she'll get a lungful of water.
The guy doesn't even appear to have a primary second stage regulator; all he has is a single backup reg, and that one's a mess. The hose drapes over his shoulder instead of hanging underneath it, and the reg is dangling free instead of being clipped off.
Neither the guy nor the girl has an air pressure gauge, depth gauge, timing device, or compass. Even Mike Nelson, that old-school he-man from Sea Hunt, carried more gear than this.
And finally, the commercial seems to imply these people are in California, where the water temps range from the high 50s up north through the mid-60s down south. Problem is, the girl is wearing a shorty suit, and those wetsuits look like they're only 3mm thick. Oh...and they're not wearing or carrying hoods. Here comes hypothermia!
To top off this horrorshow, the tiny disclaimer at screen bottom reads, "Experienced people shown. Do not attempt."
Pfffft. More like "These utterly clueless models are about to die horribly. Do not attempt."