Large Image Replacement desiccant pack and indicator for HARC Dri Doc hearing aid dehumidifier. When circles on humidity indicator card turn pink, place desiccant pack in the microwave on high for ten seconds. Put the desiccant pack and the card back in the case. The circles on the card should turn blue again if all the moisture is removed from the desiccant crystals. If circles do not turn blue, repeat the process until they do. This can be repeated for quite a long time before replacing the desiccant and humidity indicator card. |