Why Scent Works: Memory, Perception and What Research Can and Can't Tell Your Business
Most people have had the experience: a smell in a doorway suddenly brings back a place, a holiday or a person. Scent is closely linked to memory and emotion, which is why businesses are interested in it. But there's a lot of exaggeration around scent marketing, so it helps to look at what the research actually found.
Why scent works differently from what people see
Smell is processed in parts of the brain closely linked to mood, emotion and memory. A logo or a slogan is read and judged; a scent is simply felt, and it becomes tied to the memory of the place where it was met. That's why a space can feel right, or wrong, before anyone can say why.
Two practical effects for a business
- Recognition. A consistent scent across your locations gives people something to remember your brand by, something no one can copy just by looking.
- Atmosphere. The right scent can make a space feel calmer, fresher or livelier without people consciously noticing the reason.
Aromachology is not aromatherapy
Two words are often confused:
- Aromachology is the study of how scents relate to mood, perception and behaviour. Ambient scenting for businesses draws on this field.
- Aromatherapy is a practice that claims therapeutic or health benefits from plant oils.
Ambient scenting is about atmosphere and impressions, not therapy. We don't make health claims for scent.
What the research has found
A handful of peer-reviewed studies are often cited, and each comes from a specific setting:
- Perception of a store. Shoppers rated a store and its products more favourably when it was softly scented[1].
- Brand memory. A pleasant ambient scent helped people remember and recognise brands, especially brands they didn't already know[2].
- Simple scents. In a real store, a simple, easy-to-recognise scent was linked to higher spending, while a more complex scent didn't show the same effect[3].
- Time spent. In a restaurant, diners stayed longer and spent more when a lavender scent was present[4].
- Mood and goals. In a laboratory, participants in a pleasantly scented room set higher work goals[5].
- Guest emotions. In a four-star hotel, guests in a scented room appeared happier than those in an unscented room[6].
- Waiting. In a dental waiting room, people reported a calmer, more positive mood when an orange or lavender scent was in the air[7].
How to read these findings
They show possibilities, not guarantees.
Each study took place in one setting with one scent. Results in your space may differ.
The type of scent matters.
Pleasant, fitting and simple scents appear in the positive findings. A scent that doesn't suit the space, or is too strong, isn't covered by them.
Consistency matters.
Memory and recognition depend on meeting the same scent again and again.
Scent is one factor among many.
Service, cleanliness, comfort, lighting and price all shape how people feel about a business.
Where businesses use scent
Scent is used across retail, hospitality, leisure and offices, but many businesses aren't sure which scent to choose or where to put it. Areas that often work well:
- Lobby and entrance: the first contact with guests and the place where a welcome is formed.
- Reception and concierge: where people pause, check in or wait.
- Lifts, corridors and walkways: a light touch that links spaces together.
- Meeting rooms and lounges: a calm, light scent for spaces where people sit for a while.
- Hotel guest rooms: kept very light, for guests who stay for hours.
- Workspaces and pantries: very light, or unscented near food.
- Washrooms: a fresh impression, once cleaning and ventilation are in order.
- Exhibitions and events: a way for a stand or venue to feel distinct and stay in people's memory.
Why the entrance matters most
The lobby or entrance is often the first contact between your business and a guest. A pleasant scent there makes the welcome feel warm and considered, and it can become part of how guests remember you. Over time, that consistent first impression supports a positive relationship with your brand.
Washrooms: clean first
Washrooms have become part of how people judge a building, not just a functional room, and a bad smell there leaves a poor impression quickly. Scent can support a fresh impression, but it can't fix a blocked drain or weak extraction. Deal with the cause first, and read Scent is not an odour remover.
What this means for your business
Use scent as part of a well-run space, not as a shortcut. Choose a pleasant scent that fits your brand, keep it simple and light, use it consistently, and review the results against your own starting point.
How DuraScent approaches it
We share research as background, with full sources, and we don't promise specific results. Our job is to make the practical side work: a free survey, a 3-day free trial, a scent from our Scent Library of 40+ fragrances from European fragrance houses, and routine refills and maintenance, including a monthly Preventive Maintenance Visit.
Scent supports atmosphere and impressions. It isn't a guarantee of higher sales or a health product, and results vary from space to space.
Sources
Citations are shown in their original English; DOI links open the publisher’s record in a new tab.
- Spangenberg, E. R., Crowley, A. E., & Henderson, P. W. (1996). Improving the store environment: Do olfactory cues affect evaluations and behaviors? Journal of Marketing, 60(2), 67–80. https://doi.org/10.1177/002224299606000205
- Morrin, M., & Ratneshwar, S. (2003). Does it make sense to use scents to enhance brand memory? Journal of Marketing Research, 40(1), 10–25. https://doi.org/10.1509/jmkr.40.1.10.19128
- Herrmann, A., Zidansek, M., Sprott, D. E., & Spangenberg, E. R. (2013). The power of simplicity: Processing fluency and the effects of olfactory cues on retail sales. Journal of Retailing, 89(1), 30–43. https://doi.org/10.1016/j.jretai.2012.08.002
- Guéguen, N., & Petr, C. (2006). Odors and consumer behavior in a restaurant. International Journal of Hospitality Management, 25(2), 335–339. https://doi.org/10.1016/j.ijhm.2005.04.007
- Baron, R. A. (1990). Environmentally induced positive affect: Its impact on self-efficacy, task performance, negotiation, and conflict. Journal of Applied Social Psychology, 20(5), 368–384. https://doi.org/10.1111/j.1559-1816.1990.tb00417.x
- Anguera-Torrell, O., Álvarez León, I., Cappai, A., & Sanmartín Antolín, G. (2021). Do ambient scents in hotel guest rooms affect customers' emotions? European Journal of Tourism Research, 27, 2701. https://doi.org/10.54055/ejtr.v27i.2120
- Lehrner, J., Marwinski, G., Lehr, S., Johren, P., & Deecke, L. (2005). Ambient odors of orange and lavender reduce anxiety and improve mood in a dental office. Physiology & Behavior, 86(1–2), 92–95. https://doi.org/10.1016/j.physbeh.2005.06.031
