1. Food grade percolator coffee filters: Coffee filter made of wood fibres is made of natural wood pulp in food grade without fluorescence and bleach. It is a universal basket filter bag, a wood fibre coffee filter paper without chemicals, y for daily use. 2. Basket filter paper: These cake type coffee filters and basket filter coffee filters can remove most oils, coffee particles and foam, and retain the flavor of the coffee itself. Good for removing bitter soil and debris, which is essential in the process of coffee preparation. Please note: Soak the coffee filter paper with hot water before filling in the ground coffee, thereby retaining the filter paper. 3. Disposable coffee filter paper: Disposable replacement coffee filters are produced in a fully automatic, clean environment, without impurities. The coffee filters have no bleach and no harmful chemical residue, being r and ier. 4. Coffee Filter: These cake type disposable coffee filters are easy to use and do not need to be cleaned after use. Remove the disposable coffee filters easily and throw them away, saving time on cleaning.