Thymes fragrance invokes curiosity and discovery in their garden of “botanical perfumery.” Reed Diffusion is a unique form of home fragrance that uses reeds to absorb pure fragrance and then diffuse it into the air. Thyme Frasier Fir Reed Diffuser Oil Refill features ingredients like Siberian Fir needles, cedarwood, and sandalwood that are luxurious and forest-like.