Hearing wax guard is designed to keep ear wax, dust, grease and moisture away from blocking the hearing aids. It needs to be replaced from every week to every month, depends on the ear canal condition. Different people have different ear canal conditions. The hearing aid accessories should be replaced BEFORE it is full of ear wax or dust. Or the speaker of the hearing aid will probably be blocked. Package:Hearing aid wax guard filter comes with 4 packs of 32 filters/units to keep you going throughout the months. Notice: If a medical condition exists, such as a perforated eardrum, or if an ointment is used, do not use the wax guard. COMPLETE SATISFACTION: For brands: Phonak, Resound, Widex, Unitron and more. You could get confirmation by click "Ask a question" in our 's storefront page. 100% CUSTOMER SATISFACTION:We're always willing to listen to your concerns! So please free feel to contact us.

Notice: If a medical condition exists, such as a perforated eardrum, or if an ointment is used, do not use the wax guard. Function: to keep ear wax, dust, grease and moisture away from blocking the hearing aids. Our product comes with 4 pack per order which equals out to a total of 32 filters each pack comes with 8 filters to use from, suitable for hearing aids like widex, resound and phonak. Our hearing wax guard is made with high quality rubber to ensure your hearing aid filters last long enough before changing out the filters.