I have purchased this twice for a 7-day cruise and it is the perfect size and effectiveness for both the length of the trip and the size of a small cruise cabin with 2 people who are “regular.” We had used regular scented ozium in the past and it was overwhelming in the cabin; the vanilla was not. Leaving it in the packaging helped assure it wouldn’t destroy my luggage on the way there, although I did put it in a baggie as well just to be safe.