The hanging car freshener has been around longer than most people would guess, tracing back to the mid-twentieth century, when the earliest versions were simple scented cardboard shapes designed to solve a genuinely practical problem: cars of that era did not seal or ventilate especially well, and interior odors, tobacco smoke chief among them, built up quickly in a way modern vehicles rarely experience to the same degree.
The category stayed remarkably static for decades after that. A simple scented shape, usually cardboard, coated in a basic synthetic fragrance, sold cheaply and treated as disposable, replaced every few days once the scent faded. The format solved the original problem well enough that nobody had much reason to reconsider it for a long time.
What has changed more recently is the underlying assumption about what the category is actually for. Cars ventilate better now. Fewer people smoke in them. The original problem, masking a strong existing odor, matters less than it once did for most drivers. What has emerged instead is a demand closer to what fine fragrance already delivers in other parts of life: something that smells genuinely good, layered, considered, rather than something that simply covers up something worse.
That shift is really the whole story behind why the category is being rebuilt from a fragrance-first perspective rather than an odor-masking one. The original problem the format was built to solve has largely gone away. What is left is an opportunity to build something better suited to what people actually want now: a fragrance, not a fix.