What appliances orwhich appliances whatis correct?

appliance (a durable item of electrical equipment for home or office use)

You don't unless it shows a dual rating on the appliance.

i don't know but i do know that a herbst appliance pulls out your lower jaw to fix overbite a advanc sync appliance is a newer less bulky version but it doesn't work as well.

white goods item (a large electrical home appliance (a refrigerator or washing machine etc.) that is typically finished in white enamel)

A sink is not an appliance.