Reed diffusers typically consist of a container, diffuser reeds, and a fragrance liquid. The container is usually a glass or ceramic bottle. The reeds are typically selected for their absorbent properties regarding both water and oil-common materials include rattan, willow, and reeds. As product designs have evolved, the forms and materials used have diversified; other common materials now include polyester fibers, sola wood flowers, willow branches, wood, and gypsum. Based on their physical form, reed diffusers can be categorized into various types, such as natural branch styles, floral styles (made from sola wood), gypsum flower diffusers, charcoal stick diffusers, DIY branch kits, and cotton rope-and-flower combinations.
The fragrance liquid is formulated by blending a fragrance concentrate (either natural or synthetic) with a solvent. For commercial products, common solvents include Dowanol TPM/DPM and Isopar L; however, for DIY purposes, body oils or carrier oils (such as refined coconut oil) can be used as solvents. The essential oil content typically ranges from 3% to 30%, a factor that directly influences both the diffusion effectiveness and the longevity of the scent. As the fragrance liquid is a flammable substance, it must be kept away from open flames.
Furthermore, users can create their own (DIY) reed diffusers. The basic method involves preparing a container (such as a glass or ceramic bottle), diffuser reeds, a solvent (such as refined coconut oil), and essential oils. It is recommended to maintain the essential oil concentration between 10% and 15%, and a small amount of alcohol (such as vodka) may be added to facilitate evaporation. Under no circumstances should pure essential oils be used directly at 100% concentration.
