The HoMedics Ultrasonic Aroma Diffuser releases a fine mist of natural aromas to uplift your mood, while gently humidifying dry air for a more comfortable environment. Crafted from ceramic with a luminous white light, it creates a peaceful ambiance and can run up to 4 hours continuously or 8 hours intermittently. Rechargeable and portable, it is perfect for home, office, or travel use.