When baby's room is dryer than a philosophy lecture, it's time to turn on the BreatheFrida 3-in-1 Humidifier and get some moisture back in the building. The ultimate triple threat, this humidifier also acts as a diffuser and nightlight! Add a few drops of essential oils to naturally soothe and calm your little one and turn on the nightlight for bedtime visibility. COOL MIST HUMIDIFIER: Uses the power of ultrasonic vibration to turn water into a cool hydrating mist that runs for up to 12 hours. Mist adjuster goes from gentle mist to tropical rainforest with a twist of the knob. The water tank is BPA free DIFFUSER: Add Breath Frida Vapor Drops or any aromatherapy-grade essential oil for easier breathing - it covers up to 320 square feet with a 0.5 gallon tank. COLOR CHANGING NIGHTLIGHT: Equipped with a range of nightlight colors for even more control over the dreamy ambiance. AUTO-STOP FEATURE: Designed to automatically turn off when the water runs out or the tank is removed. 3-IN-1: Use humidifier, diffuser and nightlight all together, or individually.