In recent years, the filter industry has been facing increasing pressure due to rising raw material costs. Prices of key materials such as filter paper, steel, and rubber have shown significant fluctuations in the global market. These changes are mainly driven by supply chain disruptions, energy price increases, and growing demand from multiple industries. As a result, filter manufacturers are adjusting their pricing strategies while seeking more stable supply sources. Despite these challenges, many companies continue to focus on improving efficiency and maintaining product quality to stay competitive. High-quality air filters remain essential for protecting engines and ensuring long-term performance.