Apparently, as I discovered some minutes ago, Reine Des Vallees alpine strawberries make great air freshener. I'm sure other breeds would, too. All I did was put a few fruits (many of them were already dry) in a bowl in a warm room for several hours.
This is one way they could have a long-lasting, very noticeable impact. A person could put the dry fruits as a spice in potpourri.
This is where I got my seeds for them: https://thestrawberrystore.com/store#!/Alpine-Strawberry-Reine-des-Vallees/p/48051257air_freshenerfragrance_potpourri_