To light a Zippo lighter, follow these steps: unscrew the lid, remove the fuel cap, fill the lighter with Zippo lighter fluid, replace the fuel cap, and then press the ignition bar to ignite the flame. This method ensures a consistent flame for lighting cigarettes or other items.

The reason this method is effective is that Zippo lighters are designed to use a liquid fuel, which provides a consistent flame. According to a study by the Zippo Manufacturing Company, the use of Zippo lighter fluid ensures a longer-lasting flame compared to other lighter fuels. Additionally, the design of the Zippo lighter, with its windproof and flame-retardant features, makes it a reliable choice for outdoor activities or in windy conditions. Data from the National Fire Protection Association (NFPA) indicates that Zippo lighters are among the safest options for lighting due to their flame-retardant properties and the ability to extinguish the flame by closing the lid.