Diffusers are devices designed to disperse essential oils or fragrances into the air, creating a soothing and aromatic environment. Commonly used in spas, wellness centers, and homes, they come in various types, including ultrasonic, reed, nebulizing, and heat diffusers. Ultrasonic diffusers use water and vibrations to produce a fine, cool mist, while reed diffusers release scent passively through porous sticks. Diffusers help promote relaxation, improve mood, and support aromatherapy benefits such as stress relief and enhanced focus. Many models feature adjustable settings, LED lighting, and sleek designs to complement the ambiance of the space.