It launches with a powerful, almost freezing slap of pure eucalyptol, creating a dramatic, tingling coolness in the air that mimics a crisp, frosted forest morning. It is intensely airy, medicinal, and structural. As it diffuses, the sharp, menthol-like opening reveals a subtle, dry, and resinous woodiness beneath, leaving an unmistakable impression of spotless, high-performance purification.