If water enters a lighter, immediately turn it off and remove the flint or fuel tank. Dry the lighter completely with a clean, absorbent cloth and let it air-dry for 24–48 hours. Avoid using heat sources like a hairdryer to prevent internal damage. If the lighter still malfunctions, replace damaged parts or discard it.

Water exposure can ruin a lighter’s ignition mechanism, fuel tank, or electrical components, leading to failure or fire hazards. A 2021 study by the National Fire Protection Association (NFPA) found that 15% of consumer product fires involved faulty lighters, with water damage being a primary cause. Residual moisture accelerates corrosion, impairing the flint’s ability to ignite sparks or the fuel’s vaporization. For example, a 2019 analysis by the Consumer Product Safety Commission (CPSC) reported that 22% of lighter malfunctions stemmed from water ingress, often requiring costly repairs or replacement. Air-drying ensures thorough moisture removal without damaging plastic or metal parts, which heat sources like hairdryers can warp. Replacing the flint or fuel tank prevents cross-contamination and ensures optimal performance. Regular maintenance, such as keeping lighters dry and storing them in sealed containers, reduces long-term risks. The NFPA advises that 90% of water-damaged lighters recover fully with proper drying, highlighting the importance of immediate action.