This high-performance 5.6 Litre Ultrasonic Humidifier instantly vaporises water into the air for up to 47 hours its perfect for use in homes or bedrooms that has dry air and features a fully adjustable 360 mist nozzle with airflow output of between 120-480ml/hr. Its also extremely quiet and generates less than 42dB of sound to ensure you are left undisturbed as you work or sleep. Pro Breeze 5.6L Ultrasonic Humidifier with Aroma Diffuser Pod in White