Which material is commonly used for earmolds in moderate hearing loss?

Acrylic is commonly used for earmolds in cases of moderate hearing loss due to its durability and ability to provide a precise fit. It is a rigid material, which helps in maintaining the shape of the earmold and can effectively deliver a clear and strong audio signal without distortion. Additionally, acrylic is easy to clean and resistant to moisture, which is beneficial for users who may experience earwax buildup or perspiration.

While silicone is also utilized for earmolds, particularly in situations requiring greater comfort and flexibility, acrylic is typically preferred for more severe hearing losses where a tighter fit and stronger acoustic seal is necessary. PVC, on the other hand, is less commonly used in modern earmold production due to its lower durability and comfort factors, making acrylic the favored choice for managing moderate hearing loss. Thus, acrylic stands out as the most appropriate material in this context.