Scent advertising means using fragrance in a campaign rather than in a permanent space: scented billboards and bus shelters, scented print, sampling at events, or scent triggered at a precise moment. It can be memorable, but most scented campaigns fail for one reason: the scent is not controlled. Outdoors, in heat, humidity and wind, or released too strongly in a crowd, a campaign scent either disappears or annoys the people it was meant to charm.
The best-known example
In 2012 in Seoul, Dunkin’ Donuts fitted buses with devices that released a coffee aroma whenever its radio jingle played, with ads at stops near its stores. The brand reported that more than 350,000 people experienced it, with visitors up 16% and sales at stores near bus stops up 29%. It worked because the scent was controlled precisely: a short release, at a specific moment, linked to sound and to a store a few steps away. Read more in our scent marketing examples.
Why scented campaigns fail
- Heat and humidity. In Singapore, outdoor scent evaporates and disperses quickly, and some fragrances change character in the heat.
- No control. Passive scented panels release unevenly and fade within days.
- Too much. In enclosed spaces such as buses, lifts or event halls, strong scent quickly becomes intrusive.
- No link to action. A pleasant smell with no nearby store, product or message is quickly forgotten.
- Complaints. People who cannot avoid a scent, and those sensitive to fragrance, will object if it is overdone.
What controlled scent advertising looks like
- Timed release from cold-air diffusers, linked to a moment or trigger rather than constant output.
- Enclosed or semi-enclosed settings such as booths, pop-ups, lounges and launch venues, where scent can be managed.
- A scent that fits the product, such as coffee for coffee, or the brand’s own signature scent.
- A path to action: a store, a sample or a sign-up within reach.
- Safe, low levels, with fragrance formulated within the IFRA Standards.
Where it works best
Product launches, exhibitions, pop-up stores, roadshows and events are the most reliable settings, because the space and timing can be controlled. See our event and exhibition scenting service and scent for corporate events.
Frequently asked questions
What is scent advertising?
Using fragrance within a campaign, such as scented billboards, print, sampling or timed release at events, rather than permanent ambient scenting.
Do scented billboards work?
They can attract attention, but outdoors in Singapore’s heat and humidity, scent is hard to control and fades quickly.
What is aroma marketing?
A broader term for using scent to influence how people experience a brand, in spaces or campaigns. See our aroma branding guide.
Further reading: Billboards on Wikipedia.
