A device utilizing water to create a visible vapor or fog effect is commonly employed in entertainment, industrial, and commercial settings. For example, these devices are frequently used to create atmospheric effects for theatrical productions, concerts, or Halloween displays. They also find application in humidity control or specialized testing environments.
The ability to generate fog using only water offers significant advantages, including safety and cost-effectiveness. Unlike fog machines relying on glycol-based fluids, water-based systems produce a non-toxic, hypoallergenic fog, reducing potential respiratory irritation and environmental impact. Furthermore, the readily available nature of water as a consumable makes these systems less expensive to operate in the long term. Historically, fog effects were created using less controllable methods, such as dry ice or steam. The development of these modern devices allowed for more precise and consistent fog production.