Do you hear that? No – because the Dr. Brown’s Ultrasonic Cool Mist Humidifier with Nightlight has a whisper-quiet operation and comfort lighting perfect for the nursery. This air humidifier features a built-in nightlight that offers 3 brightness settings. Adjustable humidity control sets your surroundings to your exact comfort level, while the large 1 gallon (3.8 litre) tank keeps it that way for up to 30 hours. A great baby humidifier for nurseries, the automatic shut-off offers you the freedo