Charcoal Filter For Waterlovers Water Distiller pack of 10 boxes6 Pack Activated Carbon Filters for WaterLovers MKII water distiller. The carbon filter is made from Activate coconut charcoal which is effective in removing harmful VOCs (volatile organic compounds). The most common VOC is chlorine which is often used to treat town and city water sources. We recommend replacing the filter approximately once a month based on daily use.