All Blueair air purifiers are meant to be used in the country of purchase. If you purchase an air purifier and then move to another country, here is what to keep in mind:
Frequency and voltage requirements may differ from one country to another.
The regulatory requirements for product safety and radio frequencies might differ from one country to another.
Warranty enquiries are always handled by the resellers, the dealers, the shop or the local distributor in the country of purchase.