Single supplementary water can last overnight. This cool spray humidifier with a capacity of 5.0 liters can run quietly for 50 hours at a low setting and automatically turn off when it is out of water. 3. Setting the humidity to high, medium and low mode can help you balance and adjust the humidity in your home, relieve dry skin, allergies and respiratory problems all year round, and realize a healthier lifestyle. Using our humidifier in high fog mode can quickly increase the humidity to 10% in