Demeter’s Rain is the cleanest and most delicate of all our fragrances. Step outside after the first storm after a dry spell and it invariably hits you: The sweet, fresh, powerfully evocative smell of fresh rain. If you’ve ever noticed this mysterious scent and wondered what is responsible for it, you’re not alone. What you really smell comes not from the air, but the ground! Plants release oils that enter the soil and blend with the other earthy odors. These odors are released into the air when the relative humidity at ground level exceeds 75 percent. Moist humid air will transmit odors far better than dry air.