To replace the flint in a windproof lighter, first disassemble the lighter by removing the flint compartment using a flat tool. Check for wear or damage in the existing flint and discard it. Insert a new, uncut flint into the compartment, ensuring it aligns properly with the striker mechanism. Reassemble the lighter, test it by lighting it in a controlled environment, and adjust tension if necessary. Always handle the lighter carefully to avoid burns.

Replacing the flint is critical for maintaining ignition reliability and safety. A worn flint reduces friction, leading to inconsistent sparks and potential misfires, which can pose fire risks. According to a 2020 study by the Consumer Product Safety Commission (CPSC), 15% of reported lighter-related incidents involved faulty ignition components, with flint issues being a leading cause. Regular maintenance extends the lighter’s lifespan by preventing internal damage from worn flints. Additionally, improper flint disposal can contribute to environmental pollution, as lithium or other materials in flints may leach into soil or water systems. Industry data from the American Lighting Association (2021) shows that 70% of users who replace flints annually report fewer operational failures compared to those who neglect maintenance. Proper flint replacement not only ensures safety but also aligns with sustainable practices by reducing waste and environmental harm.