Just as an addendum....
A lot of medical appliances are wired to accept the different types of current. My husbands C-PAP is wired in that manner. We needed an electrical adapter to plug it in, but did not need a converter.
__________________
Darlene

Mariner of the Seas

Carnival Magic Bloggers Cruise 5

Mariner of the Seas
HAL Statendam Alaska Cruise Tour - 09/09/12; Disney Magic - 12/01/12; Allure of the Seas - 05/26/13