Renuzit Adjustable Air Fresheners can be found in various stores and are very inexpensive everywhere, but I did not find them to be very effective. I was not expecting too much and only purchased the fresheners to use in a small master bathroom. The solid freshener did gradually dissolve which was the only proof I had that it was even trying to do what it was designed to do. I never did notice any fresh scent when entering the room. I adjusted it to allow the maximum amount of exposure, but nothing seemed to improve its effectiveness. I was really hoping this Renuzit Adjustable Air Freshener would at least work in a small area since it is so very inexpensive, but it just did not perform as I had hoped. If I had a storage area or some place that is seldom used and wanted to treat the area occasionally and forget it, I would likely try placing several of these fresheners around, but there are better fresheners out there for actual living spaces.