To open a lighter for fuel refill, first ensure the lighter is completely cooled and no flames are present. Locate the fuel valve or opening, typically found on the side or top. Remove the protective cap or twist the top section counterclockwise to expose the refill port. Use a clean, dry cloth or fuel-specific pump to carefully insert the refill needle into the port. Slowly press the pump to add fuel while avoiding overfilling, which can cause leaks or pressure buildup. Replace the cap securely and test the lighter by lighting it. Always store lighters away from heat sources and flammable materials.

Improper lighter maintenance poses safety risks, including fires or explosions. According to the Consumer Product Safety Commission (CPSC), approximately 1,200 lighter-related incidents occurred in 2022, with 15% involving fuel leaks or mis refills. Overfilling can lead to internal pressure exceeding the lighter’s tolerance, as noted in a 2021 study by the National Fire Protection Association (NFPA), which linked 7% of home fires to faulty fuel containers. The use of improper tools, such as metal objects, increases the risk of punctures, a common cause of fuel spills. Additionally, the American Chemistry Council reports that 85% of lighter-related injuries involve users who skipped safety steps like cooling the lighter before refilling. Proper technique reduces these risks by ensuring controlled fuel transfer and minimizing exposure to flammable vapors. Adhering to these guidelines aligns with industry standards and enhances user safety.