What are the rules on vapes

I'm sorry I do not give you an answer I am French and all airports in Europe are prohibited

Generally designated areas only

No vaping inside, outside smoking areas only.

There is smoking area outside but don't believe inside

You can go outside and smoke / vape. Cannot vape in airport or on plane. When u go thru security they'll likely check ur bag. It's a hit or miss.

No vaping or smoking, and no electric cigarettes on the plane, but they do have designated areas at the airport.

Only in "smoking approved" places

I am sorry that I cannot help with this answer, but I think that in many closed places electronic cigarettes are prohibited