Scan Pressure-Reducing Earplugs are made from silicone, making them cleanable and reusable. They are a Class 4 product with an SNR 24 dB rating. Designed for comfort and durability, these earplugs effectively minimize ambient noise and alleviate the discomfort caused by in-flight cabin pressure. Each set comes in a convenient resealable container, ensuring they stay clean and ready for use. Enjoy peace of mind with a recommended shelf life of 3 years. These earplugs conform to the EN 352-2 standard, guaranteeing quality and safety. Perfect for travelers, concert-goers, or anyone seeking a quieter environment.