Features 1Prevent Blocking: Hearing aid filter is waterproof and oil proof, which can effective prevent earwax, dust and other foreign matter blocking the horn. 2Avoid Foreign Objects Enter: Hearing aid guards can prevent foreign objects from entering the hearing aid and affecting the normal operation. 3Extend Service Life: Hearing aid wax guard can improve the durability and reliability of the hearing aids, effectively prolong the service life. 4Simple To Install: Hearing aid wax filter is compact in size and easy to install, which can make sure the elderly or other groups use it easily. 5Excellent PP: Hearing aids filter guards made of high quality PP materials, safe and durable, which can be used for a long time. Specification Item Type: Hearing Aid Filter Material: PP Function: Prevent earwax, dust and other foreign matter blocking hearing aids horn Package List 1 x Hearing Aid Filter