Ear wax guard is designed to keep ear wax, dust, 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 filter should be replaced BEFORE it is full of ear wax or dust. Or the speaker of the hearing aid will probably be blocked.

Notice: If a medical condition exists, such as a perforated eardrum, 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. Fits Starkey and ITE, CIS, RIC, ITC Hearing aids. Our wax guard filter cleaning kit is made with high quality rubber to ensure your hearing aid guard last long enough before changing out the filters.