According to the manufacturer's guidelines in 2026, EarPlanes are designed to be disposable and are technically only rated for two flights (one round trip). The reason is that the patented "CeramX" ceramic filter inside the earplug is extremely porous; over time, it becomes clogged with microscopic dust, airborne particles, and earwax, which prevents it from effectively regulating the shifting air pressure that causes ear pain. While you can gently wipe the exterior silicone with a damp cloth or mild soapy water to remove surface wax, you cannot wash the ceramic filter or submerge the entire plug in water. Doing so will ruin the filter’s ability to "breathe," rendering the product useless for pressure regulation on your next flight. For 2026 travelers who fly frequently, it is much safer to replace them after one round trip to ensure your ears are fully protected during takeoff and landing. If they look visibly "waxy" or the silicone feels stiff, it is a clear sign that the internal filter is likely compromised and a new pair is required for your comfort.