@Helenacaunt Please check to see what voltage standards are used in those countries before your journey.

Here is an article from Dyson which shows which countries use the same voltage standard as your home country, the UK (but Chile and Argentina aren’t listed, so please do check):

https://support.dyson.com.au/supporthome.aspx/Hair-Care/Dyson-Airwrap-Styler/Dyson-Airwrap-Styler/310729-01/using-your-dyson-machine/how-to-use-your-appliance-abroad

NOTE: If the countries you’re going to use the European voltage standards, like the UK, then it should work with a simple plug adapter - if they use the North America voltage standard - then the UK version won’t work there.

Safe travels!