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Most people approach this as a question of preference — which scent do I like. That is the wrong starting point, and it is why a lot of programs end up being changed three months in.
The better question is what the space is for, and who is in it.
Start with the room's job
A fragrance that is right for a leasing office is usually wrong for a chapel, and both are wrong for a gym. Not because of taste, but because the rooms are doing different work.
Arrival spaces — lobbies, entries, leasing offices — want something that registers clearly and reads as considered. This is where a fragrance with real structure earns its place, because people are forming a judgement.
Spaces people stay in — dining rooms, clubhouses, offices — need restraint. Anything that announces itself becomes tiring over an hour, and the complaint arrives as "it's too strong" when the real problem is that it was too simple.
Spaces with an emotional register — funeral homes, memory care, healthcare — need fragrances that do not draw attention to themselves at all. Dignified rather than pleasant. Getting this wrong is worse than doing nothing.
Spaces with their own odours — fitness, pet areas, waste-adjacent, food service — are odour-control problems first. Fragrance selection comes after the source is addressed, not instead of it.
Then the people
Who is in the space, and can they leave? This is the single most important sensitivity question. A retail customer who dislikes a scent walks out in ten minutes. A resident in senior living lives in it. The threshold for intensity and the threshold for what counts as an acceptable fragrance are completely different in those two cases.
How long do they stay? Dwell time changes everything. Something that is delightful for ninety seconds can be intolerable for three hours.
Is anyone working in it all day? Staff experience the fragrance far more than guests do, and staff complaints are what usually end a programme. Their tolerance is the real constraint, and it is a good reason to have the fragrance chosen by someone who does this for a living.
Then the brand
Only after the first two does taste properly enter the conversation — and here the useful question is not "what smells nice" but "what should this place feel like."
Warm and enveloping, or clean and bright. Traditional or contemporary. Distinctive enough to be recognised across properties, or quiet enough to disappear into the architecture. A fragrance can be all of those things competently; it cannot be several of them at once.
Practical constraints worth knowing
Intensity is not the same as quality. A strong scent is not a better scent. The most common specification error is compensating for poor coverage by increasing intensity, which produces a space that is overpowering near the unit and empty elsewhere.
The research is more precise about this than you might expect. The largest meta-analysis of ambient-scent experiments reports nonlinear effects of perceived concentration — meaning there is a right level, not a rising line. And a study run in a working supermarket, testing the same melon scent at three different intensities, found the higher level lifted store evaluations, time spent in the store and store-level sales. Getting the level right is worth real money. Finding it is the job.
Seasonality is optional and usually unnecessary. Rotating fragrances seasonally is a real option, but it works against recognition. If scent is functioning as a brand cue across a portfolio, changing it quarterly undoes that.
Consistency beats perfection. A good fragrance in every property is worth more than an ideal one in each, because the recognition effect depends on sameness.
And then test it
No description of a fragrance tells you how it will behave in your building. Air handling, foot traffic, existing odours, ceiling height and the materials in the room all change the result.
A blotter tells you almost nothing. A showroom tells you slightly more. The only test that answers the question is running it in the actual space for long enough that people stop noticing it is new — which is exactly what a seven-day on-site trial is for.
It applies across every vertical we serve, including apartment and multifamily scenting, casino scent marketing, senior living scenting, commercial property scenting, and hotel scenting. Related reading: Commercial Fragrance vs. a Janitorial Add-On: What Actually Differs.