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I found this thing in my hotel bathroom, above the sink; looks like an air gap of some sort, but for what purpose?

Also, if I were to make an air gap with "discrete" components at least I'd make the top pipe go a bit lower into the "cone", to avoid risking throwing too much water around. Why is it made like this?

the thing in the hotel bathroom

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    If the drain pipe extended into the cone it wouldn't be an air gap, which requires that under no condition will the outlet be underwater. – isherwood Aug 29 '19 at 17:20
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    My guess is that it's a condensate line from mechanical equipment, or maybe a drain for a ice maker. – isherwood Aug 29 '19 at 17:21
  • Aaah right, so this explains why it's made like that. – Matteo Italia Aug 29 '19 at 17:22
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    This is not a home improvement question. – Alaska Man Aug 29 '19 at 18:02
  • @AlaskaMan ... interesting though it is, I agree. – Daniel Griscom Aug 29 '19 at 19:25
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At least they used chrome, if the tube went into the drain there could be reverse migration if the drain was slow the separation is a requirement for food processing chillers to prevent back flow. This is probably a safety for a boiler or the piping.

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