208V ≠ 220V. Most 220V appliances will happily run on 240V, which in the US is easily made from two phase 120V (single phase 240V). The two phases of 120V are 180deg out of phase. 208V comes from THREE phase 120V, where phase to phase of any 2 of the 3 phases is 208V. Appliances rated for 208V will not always happily accept 240V. This is often the case where there is an old fashioned stepdown or step up transformer internally that is not regulated, such as a filament supply transformer or B+ transformer. The excess voltage can damage the appliance's electronics.
Anyway I think somewhere above someone said the unit is actually 220V and not 208V, so kinda a moot point, but I didn't want to leave it uncorrected in case someone else was looking to run a 208V item on 240V mains.
Cyp is right about the breakers and Ion lasers though, but you should also keep in mind the wiring in your walls, old aluminium wiring can get quite hot.