Ozonic

What it is

Aldehydes and synthetics designed to suggest air rather than any object in it. It arrived with the aquatic trend and the two are often confused.

What it smells like

The smell of air just after a storm, sharp and faintly metallic. There is nothing to grip onto, which is the intention, and it is the accord most often described as smelling clean without smelling of anything.

How strongly it is worn

The average strength this accord is listed at, where 100 means it dominates the fragrance.

69 / 100

What builds it

How much more often than the catalogue average. 1.0x would be chance, so these are the things that genuinely travel with it rather than the things that are simply common.

Accords it sits beside

Same measure, with its own family filtered out. Saying woody turns up with oud is a restatement, not a finding.

When it is worn

Against the average fragrance here. The line marks that average, so a bar past it means this is worn in that season or setting more than most.

Houses that use it most

Counted across the fragrances here, which reflects what we cover as much as what a house makes.

Calvin Klein (6), Burberry (4), Bvlgari (3), Dolce & Gabbana (3), Xerjoff (3), Ajmal (2).