Chemex, a family-owned American company, has been crafting coffee brewers to create the perfect cup of coffee since 1941. Their design is elegant, simple and timeless, constructed from high-quality glass used for lab ware. Chemex Bonded filters are based on laboratory paper and are designed to remove bad fats, bitterness, acidity, and sediments other filters leave behind. The filter paper is manufactured in the US by responsible and sustainable practices.