Could I switch back and forth between two fragrances in one room?

Yes! With an Aera or Aera Mini diffuser for each fragrance, you can use the AeraForHome app to control and schedule scenting for each device. For example, one can be scheduled for daytime scenting, and the other can be scheduled for evening scenting. With the AeraForHome app, you can also vary fragrance intensity and create different schedules for different days of the week.