Australians definitely do.

In many countries I have visited, its the norm. eg- Singapore.

Submitted title was "Scientists created the whitest paint. It could eliminate aircons". We've since changed it.

I’ve heard this before but very rarely. I think it’s a regional thing.

I had a housemate from Korea who called it that.

The anglosphere outside of north america

Should be called room cooler.

Very common in Australia.

What do you call it?

in japanese it's エアコン (eakon)