Numerous research projects have improved our knowledge of volatile compound and particle emissions, as well as the health risks associated with the use of combustible air fresheners (incense, scented candles) [EBENE project] and non-combustible air fresheners, such as active or passive fragrance and essential oil diffusers [PRESSENS project].

These studies were carried out under controlled laboratory conditions, then under realistic conditions during a measurement campaign in the CSTB's MARIA experimental house. They underline the importance of reducing the highest chronic exposures (acrolein, benzene, limonene) and acute exposures to acrolein, formaldehyde and fine particles.

Emissions linked to the diffusion of essential oils are likely to give rise to the formation of oxygenated gaseous by-products (formaldehyde, acetone) in an oxidizing environment, as measured in emission micro-chambers, a 1 m3 chamber and a 40 m3 IRINA experimental room [ESSENTIEL project].

These results will be compared with the findings of allergists on patients who use these home fragrances.

On this occasion, we will be delighted to welcome Dr Fabien SQUINAZI, President of the SEIQA College:

• Mélanie NICOLAS, Researcher, Head of the emission pollutant measurement laboratory, Health and Comfort Department, Centre Scientifique et Technique du Bâtiment
• Frédéric THÉVENET, Lecturer, Professor, IMT Lille Nord Europe
• Docteur Jean-Charles BONNEAU, Allergist, Angers, France
• Docteur Eric THOMAS, Allergist, Chaumont

We hope to see many of you at this event, and please spread the word.

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