Vaporizers work by heating water until it turns into hot steam. Humidifiers create a cool mist. Both add humidity to the air, which may help soothe cold and flu symptoms. With children, experts agree ...

The most common types of humidifiers are cool or warm mist and evaporative, steam, or ultrasonic units. Signs of a dry indoor environment include electrostatic shocks, headaches, nasal stuffiness, dry ...