Vent plugs working in dusty, sandy or high-pollution settings are more likely to have their porous membranes clogged by external particles. Such blockages can hinder air permeability and weaken waterproof performance over time, making targeted checks necessary to keep the membrane free from obstructions. For vent plugs used in clean and dry environments, the risk of clogging is relatively low, but basic inspections still help avoid unexpected issues.

High-grade vent plugs made from corrosion-resistant and wear-resistant materials can maintain stable performance for a long time with minimal care. In contrast, vent plugs crafted from inferior materials may suffer from membrane aging, sealing loosening or structural deformation, which calls for more frequent checks and timely replacements if needed.

Vent plugs installed on equipment that undergoes frequent vibration, temperature changes or mechanical impacts may experience loosening at the connection interface. Regular inspections can ensure the vent plug remains firmly attached to the device housing, preventing water seepage or pressure imbalance problems caused by loose installation.