Hi @REL
Thanks for posting a question out to the wider community - it doesn’t look like an of our other members have been able to help, so I thought I’d step in to help.
Although not a direct answer to your question, I believe our ‘Dyson Airwrap multi-styler/Dyson Supersonic hair dryer - Can I use it abroad/overseas?’ article may help.
Theoretically, if the standard voltage in your country is between 220 and 240 volts, like in the UK, Europe, Australia, and most of Asia and Africa, then you can use your electric appliances in Korea. However, please bear in mind the information regarding use with a converter or electrical adapter.
I hope this helps.
Stuart