We bought scent fill to replace nasty conventional plug ins at our Dojo. :( I believe they were causing health problems for my husband who is an instructor there five days a week. We got the Ok from the owner, and we bought them outright to replace the nasties with these wonderful scents in the whole facility....Well, let me tell you-Everyone is more than excited at the Dojo! I even bought a scent the owner would have had at home from Columbia and put it strategically in his office to surprise him! We are over the moon! Thank you for being an awesome and LOCAL business we can turn to! We support small businesses!