What If You Could Carry Your Own Atmosphere? The Future of Personal Digital Smell
Could the Future of Emotional Well-Being Be as Simple as Carrying Your Own Scent?
From Space to Self: A New Vision for Personal Olfactory Environments at Digital Olfaction 2026
What if the atmosphere around us could adapt to our emotional state? Researchers and designers from Politecnico di Milano are exploring how personal, controllable scent environments could open new possibilities for stress management, emotional regulation and human-centred technology.
From Scenting Rooms to Creating Personal Environments
For decades, scent has been used to shape the atmosphere of buildings, commercial spaces and public environments. But what if we could move beyond scenting rooms and instead create an invisible, temporary olfactory environment around each individual?
At the Digital Olfaction Society World Congress 2026, taking place in Tokyo on December 9–10, Professor Anna Barbara, together with Asia Nicoletta Perotti and Dario Rubiliani from Politecnico di Milano, will present an innovative design concept entitled:
“From Space to Self: Personal Olfactory Microenvironments for Psychophysical Well-being.”
Their central question is both simple and ambitious: Can olfactory design move from the scale of space to the scale of the self, becoming a portable, controllable support for emotional regulation?
A Personal Bubble of Scent – Controlled by You
Imagine travelling on a crowded train, preparing for an important presentation or struggling to relax before sleep.
Instead of changing the scent of an entire room, a small personal device could create a temporary olfactory field around your body.
The proposed concept, called a Personal Olfactory Microenvironment, is built around four principles: personalization, gradual exposure, reversibility and user control.
Unlike conventional ambient diffusers, the objective is to offer a scent experience that is individually adjustable, temporary and designed to minimize its impact on others.
Meet the “Breathing Stone”
One of the most intriguing elements of the project is the Breathing Stone, a palm-sized device designed to be held rather than directly inhaled.
Its discreet, tactile form is intended to integrate naturally into everyday life.
The concept incorporates a piezoelectric atomizer and a refillable scent reservoir. Potential use scenarios include calming profiles during stressful journeys, short focusing profiles before demanding activities and gradual scent release before bedtime.
These are proposed applications, rather than clinically validated therapeutic outcomes.
What If Scent Could Respond to Your Stress?
The researchers also envision a more advanced adaptive system.
Future versions could potentially use physiological signals, including heart rate variability, skin conductance and breathing patterns, to estimate an individual’s arousal or stress state.
The device could then adjust scent characteristics, intensity and duration.
Importantly, the proposed system preserves individual control: the person always decides whether to activate, modify or stop the experience.
This human-centred approach raises important questions about the relationship between sensory technology, emotional well-being and personal autonomy.
Beyond Fragrance: A New Direction for Digital Olfaction
The significance of this work extends beyond the design of a portable fragrance device.
It proposes a shift in how we think about olfactory technologies: from scenting shared environments to creating personalized sensory experiences that could eventually respond to individual needs.
The scientific challenge will be to establish whether such systems can reliably influence emotional states, determine appropriate scent exposure, accommodate individual differences and demonstrate meaningful benefits in controlled human studies.
Could personal olfactory microenvironments become part of tomorrow’s well-being technologies?
This is one of the questions that will be explored at the Digital Olfaction Society World Congress 2026.
Discover the Future of Digital Smell in Tokyo
Digital Olfaction Society World Congress 2026
December 9–10, 2026 | Tokyo, Japan
Featured presentation: Anna Barbara, with Asia Nicoletta Perotti and Dario Rubiliani
Institution: Politecnico di Milano, Italy
Explore the scientific programme and discover how researchers, engineers and designers are shaping the next generation of olfactory technologies.
Submit a demonstration here
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