A diffuser is a gadget used to diffuse essential oils into the air, releasing their scent and their aromatherapeutic effects to be inhaled. The most common type of diffuser is the aroma lamp, a small tripod that holds a small bowl over a candle or tealight. Water and essential oils are placed in the bowl. When the candle is lit, it heats up the water, gently releasing the volatile vapors of the essential oils into the surrounding air. A diffuser of this type can contribute to both the ambiance and the atmosphere of your home. Aroma lamp diffusers come in a wide variety of styles to suit any decor, from stark deco to the most rococo and ornamented.

Another common type of diffuser is the light bulb ring, a ceramic ring that fits on top of a light bulb. The ring has a groove around the top, into which you can drip essential oils. Heat from the light bulb evaporates the essential oils, releasing them into the air. This type of diffuser is handy for situations in which burning a candle might be dangerous or not allowed, such as in an office environment. As a note on etiquette, if you are in shared office space and wish to diffuse essential oils, please check with your coworkers for allergies and preferences. Some scents that you might love could possibly be loathsome to your neighbor.

Yet another kind of diffuser is a simple unglazed ceramic pot. These diffusers are typically glazed on the bottom and part way up the sides to protect the surface they are sitting on. Putting water and essential oils in the pot allows the mixture to seep into the ceramic medium and, once again, evaporate, releasing the scent and effects of the oils.

Electric diffusers are also available; these typically come with absorbent pads that you soak in essential oils and place in the machine. Like an aircleaner, the diffuser blows air over the oil-soaked pad and out into the room. These are rather wasteful of costly essential oils and make a bit of a hum, which can get annoying.

If you are looking for a product that will diffuse essential oils into your living environment, there are plenty of diffuser options to choose from.