Heat essential oil diffusers use a heating element to turn the essential oils (which can be mixed with water, if desired) into a vapor that can be diffused into the air. This means you can inhale and absorb the benefits into your body, which can aid relaxation but also works wonders for your senses. This Is How Scentsy Diffusers And Oils Work Including The Multiple Lighting Options Scentsy Scentsy Fragrance Scentsy Diffuser Peppermint or citrus essential oils work great. How to oil diffusers work . It is recommended to avoid sedative essential oils since there will be some driving going on. The methods used are either fans, heat, electric waves (ultrasonic), or streaming the oils through a nebulizer. Heat isn’t required in the process. Those types include ultrasonic, heating, and atomizing diffusers. These microscopic droplets spread around the area, infusing it with the aroma of the essential oil that is in the diffuser. For example, if you're looking to relax after a...