Foam Earplugs: How They Work and How to Choose Them
Noise can affect sleep, concentration, travel, work, and everyday comfort. For people who need to reduce surrounding sound, foam earplugs offer a straightforward form of passive hearing protection. Unlike electronic noise-cancelling devices, they work by physically reducing the amount of sound that reaches the ear. The material, density, shape, and fit all influence how an earplug performs. Understanding these factors can help users choose an option that is comfortable enough for extended wear while providing the level of sound reduction they need. What Are Foam Earplugs? Foam earplugs are hearing-protection devices made from compressible foam that is inserted into the ear canal. Once positioned correctly, the material expands to create a seal that reduces incoming sound. Many disposable and reusable-style foam products use polyurethane foam. Otifleks describes its Super Soft Foam Earplugs as using polyurethane foam that expands gently in the ear canal, with a slower expansion intend...