Fragrance Evaporation

By Fragrance

All fragrances go through an evaporation process and lose strength over time. What most people don’t know, however, is that the character of the fragrance will change as it evaporates. That’s because the various essential oils and aromatics, or “notes”, that make up the fragrance evaporate at different rates:

Stages of Evaporation

Top Notes

Top notes are the most volatile oils. They provide a strong initial impact and evaporate quickly. Citrus oils tend to be top notes. Some fruits are also top notes.

Middle Notes

Middle notes are less volatile. They are not as strong at first, but they take longer to evaporate. Middle notes remain detectable in the air — longer than top notes. Florals tend to be middle notes, as well as some fruits and spices.

Base Notes

Base notes are the least volatile and longest lasting. They are subtle, yet steady aromas that linger through the end of the fragrance life. Base note oils are mostly woods and some spices.

Making a fragrance “stronger” doesn’t mean it will last longer, because that usually means including more top notes. The goal is to include a variety of notes, so that as the top notes fade away, the middle notes and base notes take over, extending the life of the fragrance. This also adds depth and richness to the fragrance, further enhancing your image of quality.

Essential Oil Groups

By Fragrance

Aire-Master fragrances are unique, custom blends, designed for maximum performance and aroma quality. Not every fragrance appeals to everyone, nor is every fragrance ideally suited to every environment or situation. That is why Aire-Master offers the widest variety available.


Orange, lemon, bergamot — Citrus oils are among the most volatile; they disperse quickly. They have fresh, zesty aromas that blend well with florals and spices.


Apple, cherry, strawberry — These scents are usually quite strong and long lasting. Some fruits blend well with spices and woods.


Rose, lilac, jasmine — Florals are extremely versatile; they blend well with oils from most group.

Herbs and SpicesHerbs & Spices

Cinnamon, ginger, mint — They are strong, slow evaporating and long lasting. Herbs and spices blend well with oils from most other groups, especially citrus and woods.

Pine cone and needlesWoods

Cedarwood, pine — Woodsy aromas can be sweet, bitter, green, or earthy. They are among the slowest evaporating and longest lasting oils. Woods blend well with florals and spices.


Specialty scents, neutrals — These include food-type aromas, cologne and perfume types, and seasonal fragrances. This category also includes neutral odor killers that contain little or no scent.

View our current Fragrance List.