What is a characteristic of fog nozzles compared to smooth bore nozzles?

Fog nozzles are designed to create a fine mist of water droplets, which increases the surface area of the water exposed to heat. This greater surface area leads to better heat absorption, making fog nozzles particularly effective for cooling and extinguishing fire. The water droplets produced by fog nozzles can absorb heat more effectively than solid streams from smooth bore nozzles, which primarily project water in a more concentrated, solid form.

This characteristic of fog nozzles allows them to be used in a variety of firefighting situations where quick cooling of the environment is necessary. For example, when fighting structural fires or protecting exposures from radiant heat, the ability of fog nozzles to absorb and dissipate heat effectively can aid in controlling the fire more efficiently.