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  2. Aroma lamp - Wikipedia

    en.wikipedia.org/wiki/Aroma_lamp

    A nebulizer is a device that does not use water or heat as other diffusers. [5] The bottle of essential oil is attached directly to the nebulizer. As a result, the unit uses 100% pure essential oil. The benefit of using this device is a strong concentration of the essential oil.

  3. Aromatherapy - Wikipedia

    en.wikipedia.org/wiki/Aromatherapy

    Aromatherapy is a practice based on the use of aromatic materials, including essential oils and other aroma compounds, with claims for improving psychological well-being. [ 1 ] [ 2 ] [ 3 ] It is used as a complementary therapy or as a form of alternative medicine , and typically is used via inhalation and not by ingestion.

  4. Fragrance oil - Wikipedia

    en.wikipedia.org/wiki/Fragrance_oil

    However, synthetic versions of the same compound as a natural essential oil are usually very comparable. Furthermore, natural oils are in many cases significantly more expensive than their synthetic equivalents. Aromatic oils are used in perfumery, candles, cosmetics, flavoring of food. [3] Some include (out of a very diverse range): Ylang ...

  5. Essential oil - Wikipedia

    en.wikipedia.org/wiki/Essential_oil

    Essential oils are also known as volatile oils, ethereal oils, aetheroleum, or simply as the oil of the plant from which they were extracted, such as oil of clove. An essential oil is essential in the sense that it contains the essence of the plant's fragrance —the characteristic fragrance of the plant from which it is derived. [ 1 ]

  6. Fragrance extraction - Wikipedia

    en.wikipedia.org/wiki/Fragrance_extraction

    The remaining waxy mass is known as a concrete, which is a mixture of essential oil, waxes, resins, and other lipophilic (oil-soluble) plant material, since these solvents effectively remove all hydrophobic compounds in the raw material. The solvent is then removed by a lower temperature distillation process and reclaimed for re-use.

  7. Displacement ventilation - Wikipedia

    en.wikipedia.org/wiki/Displacement_ventilation

    Diffusers can be located against a wall ("wall-mounted"), at the corner of a room ("corner-mounted"), or above the floor but not against a wall ("free-standing"). [2] The cool air accelerates because of the buoyancy force, spreads in a thin layer over the floor, reaching a relatively high velocity before rising due to heat exchange with heat ...

  8. Diffusion (acoustics) - Wikipedia

    en.wikipedia.org/wiki/Diffusion_(acoustics)

    Diffusors (or diffusers) are used to treat sound aberrations, such as echoes, in rooms. They are an excellent alternative or complement to sound absorption because they do not remove sound energy, but can be used to effectively reduce distinct echoes and reflections while still leaving a live sounding space.

  9. Rose oil - Wikipedia

    en.wikipedia.org/wiki/Rose_oil

    Rose oil (rose otto, attar of rose, attar of roses, or rose essence) is an essential oil that is extracted from the petals of various types of rose. Rose ottos are extracted through steam distillation , [ 1 ] while rose absolutes [ 2 ] are obtained through solvent extraction , the absolute being used more commonly in perfumery .