I use this on carpets, fabric covered furniture and quilts that don't get washed and need freshening from time to time. Whether it's humid summer and things tend to get a bit muggy smelling, or winter when the fireplace offers too much of a smokey scent, I've found this spray keeps things smelling fresh. I don't use much as it has a really strong scent at first, just want freshening and this does the job. The lingering scent stays for a few days sometimes, but the fresher smell is noticeable for longer. A light hand is required when applying it though. I have an air purifier that has a light that turns red when it senses something that needs cleaning up. If I spray too much that happens and the fan boosts to reduce the excess so I've learned to take it easy when spraying.