The note unfolds with an immediate sensation of pure, crystalline freshness, evoking the very essence of water itself – not merely wetness, but the perceived smell of clean air after a rain shower, a sea breeze, or the cool mist rising from a waterfall. It is often described as transparent, ozonic, airy, and sometimes subtly metallic or iodine-like, particularly in its marine variations. The initial impression is bright and uplifting, carrying a subtle, dewy sweetness often reminiscent of melon rind or cucumber flesh. Its texture is smooth, cool, and incredibly fluid, providing an almost weightless quality to a composition. Projection can range from a delicate, ethereal veil to a bracing, invigorating surge, depending on the specific molecules employed. It typically behaves as a top or heart note, offering an expansive, diffusive quality that clears the olfactory palate and ushers in other notes with remarkable clarity. Longevity varies; while its initial sharp freshness can dissipate, the underlying 'wet' or 'airy' sensation can linger, providing an enduring impression of cleanliness.