Hearing Aid Filters HF4 Wax Guard Filter Earwax Guard Replacement Wax Filter Dust Trap Filter for Hearing Aid Tool Hearing Aid Wax Guard HF4 Hearing Aid Filter Blue Oil Proof Extend Service Life Avoid Blocking for Daily Use the hearing aid wax guard 2mm suits for SiemensSigniaRexton Feature: 1. Prevent Blocking: Hearing aid filter is waterproof and oil proof, which can effective prevent earwax, dust and other foreign matter blocking the horn. 2. Avoid Foreign Objects Enter: Hearing aid guards can prevent foreign objects from entering the hearing aid and affecting the normal operation. 3. Extend Service Life: Hearing aid wax guard can improve the durability and reliability of the hearing aids, effectively prolong the service life. 4. Simple 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. 5. Excellent 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: HearingAidFilter Material: PP Function: Prevent earwax, dust and other foreign matter blocking hearing aids horn Package List: 1 x HearingAidFilter _x000D_