Essential oil diffusers are a simple way to fill a room with refreshing, natural scents, but the benefits go beyond mere fragrance. These devices can also help you experience the benefits of aromatherapy at home with just the push of a button. Research shows that certain essential oils can have a significant impact on your mood and brain function, helping you feel calm and relaxed or alert and energized, depending on the blend you choose. Diffusers turn essential oils, such as lavender, eucalyptus, or peppermint, into a fragrant mist that spreads throughout a room, allowing you to reap the benefits of aromatherapy while working during the day or winding down before bed.