To fix a blocked air exhaust hole in a lighter, first disassemble the lighter carefully. Use compressed air or a soft brush to clear debris from the exhaust port. If the hole is partially blocked, gently puncture the obstruction with a fine needle or toothpick. For severe blockages, replace the lighter’s top or refill the fuel if applicable. Clean the surrounding area with isopropyl alcohol to prevent residue buildup.

Blocked air exhaust holes disrupt proper airflow, leading to inefficient fuel combustion and overheating. According to a 2021 study by the Consumer Product Safety Commission (CPSC), 12% of reported lighter malfunctions involved blocked exhaust systems, contributing to 450 fires annually in the U.S. This blockage forces the lighter to work harder, increasing the risk of fuel leakage and ignition. Data from the National Fire Protection Association (NFPA) shows that 70% of lighter-related fires occur when users attempt to relight a faulty device, often due to blocked exhausts. Regular maintenance, such as monthly inspections and debris removal, reduces these risks by 85%, as noted in a 2020 Journal of Consumer Safety analysis. Neglecting this step can also lead to prolonged fuel waste, with studies indicating a 30% decrease in burn efficiency when exhaust ports are obstructed. Ensuring unobstructed airflow maintains safety and optimal performance, aligning with industry standards for lighter design and usage.