Steam vaporizers are devices that convert water into steam, which can be used for various purposes, including humidifying the air or inhaling for respiratory relief. They work by heating water until it reaches its boiling point, producing steam that is released into the environment. This process can help alleviate symptoms of colds, allergies, and other respiratory issues. These vaporizers are often used in homes, especially during dry seasons or in areas with low humidity. Some models include features like adjustable steam output and built-in filters. Popular brands include Vicks and Honeywell, which offer a range of options for different needs.