Core Viewpoint - The new policy implemented by the Civil Aviation Administration of China (CAAC) on June 28, prohibiting the carrying of non-3C certified power banks on domestic flights, has been in effect for over a hundred days, yet a significant number of non-compliant power banks continue to be discovered at airport security checkpoints [1][5]. Group 1: Airport Security Measures - Daily, hundreds of non-3C power banks are abandoned at security checkpoints, despite a decrease in the overall number since the policy's implementation [5]. - At Nanjing Lukou International Airport, dedicated inspection points for power banks have been established, where security staff verify compliance with the 3C certification [2][5]. - The issue persists as many passengers, including foreign travelers, remain unaware of the regulations, leading to frequent abandonment of non-compliant power banks [5][6]. Group 2: Market Concerns - Despite the ban on non-3C power banks for air travel, these products are still available in the market, particularly on second-hand platforms where they are sold at low prices [6][8]. - Experts indicate that second-hand platforms have become a primary channel for the circulation of non-3C power banks, highlighting regulatory gaps in production and sales [8]. - Recommendations include enhancing regulatory oversight on the sale of non-compliant power banks, improving public awareness of the regulations, and establishing a comprehensive recycling and disposal system for non-compliant electronic products [8].