An Air Freshener is a product designed to mask or remov […]
An Air Freshener is a product designed to mask or remove unpleasant room odors. These products typically deliver fragrance and other odor counteractants into the air. They do so through a variety of product formats, including aerosols, candles, potpourri, and gels. By the late 1990s, sales of air fresheners in the United States had exceeded several hundred million dollars per year.
The perfume oils used in preparing fragrance concentrate in the air fresheners can be divided into a variety of types. These include aldehydes, which are members of the synthetic fragrance group. When concentrated, aldehydes smell soapy or fatty; however, when mixed in the proper proportions with water, they develop a sweet, flowery smell. Green fragrances are fresh, having an odor similar to cut grass or plant stems and are also usually produced by synthetic perfume oils. However, natural sources of green notes such as galbanum, a tropical resin, or violet leaf oil are also used.
Floral notes are some of the oldest and most popular fragrance components. Examples include jasmine-rose complexes blended with lilac and lily of the valley. Herbal-spice fragrance notes are also important components. Lavender, sage, moss, cinnamon, cloves, sandalwood, and cedar are used to provide these notes. Lastly, oriental fragrance notes may be included. These are sweet, heavy, and strong, and are often found in natural animal materials, such as musk. Specific examples of fragrance ingredients used in Plug-Ins include bergamot, bitter orange, lemon, mandarin, caraway, cedar leaf, cloverleaf, cedarwood, geranium, lavender, patchouli, lavandan, rose absolute, and many others. These can be mixed with a variety of synthetic fragrance components, such as aldehydes, ketones, esters, alcohol, terpenes, and so forth. These components are blended together, and mixed with a variety of gelling ingredients.
The gel matrix that contains the fragrance can be an organic or inorganic system. These are typically prepared hot, and the fragrance is added as the product cools to preserve the integrity of the fragrance.