This set always comes with Delighted, White Tea and Adventurous. If you'd rather pick your own three, go to the ARO 25 MAX page — same diffuser, any of our fragrances, in the size you like.

Yes. At today's prices the ARO 25 MAX and the three 120 ml bottles come to $294.96 on their own pages; the set is $264.99, so you save $29.97. That number is worked out from the live prices, not a made-up "was" price.

It depends on the intensity you set, how many hours a day it runs and the size of the area. Pour one 120 ml bottle into the ARO 25 MAX at a time; a lower intensity and fewer hours a day make it last longer, and after the first fill you'll know your own pace.

Yes — any Aromely fragrance pours into the ARO 25 MAX's bottle. When one runs low, top up with the next from the box or try something new; the 120 ml is a good size to refill with.

On a table or shelf about chest height, or on the wall with the kit in the box, pointed toward the open room. It scents the room it's in and the rooms open to it.

It arrives as one box with everything needed to start: the diffuser, three fragrances and the free app. The person receiving it plugs it in, pours in a bottle and sets the hours — no extra purchase to make it work.

It's covered for one year from the day it arrives. Call 866-276-6359 or email support@aromely.com with your order number; if it needs repair or replacement we send you a prepaid shipping label.

Yes. You have 30 days from delivery, and we pay the return shipping in the U.S. Send the diffuser back in the same condition you received it — the original box, all the accessories, no fragrance oil left in the tank — and the fragrance bottles unopened.