A fabric or paper sheet coated with a substance which has a strong ability to adsorb microorganisms such as bacteria and viruses and a strong ability to remove the same to thereby make them harmless. This sheet is usable in filters, masks and so on whereby microorganisms such as bacteria and viruses can be removed. A fabric made of a fiber material (for example, a polyester) having sulfonate or carboxylate introduced thereinto wherein the surface of the material or the fabric is coated with, for example, titanium oxide in the anatase form. It is capable of adsorbing harmful microorganisms such as bacteria and viruses and making them harmless. Moreover, it has a sufficient air-permeability and, therefore, is useful in filters, masks and so on. A fabric or paper sheet is impregnated with anaqueous solution of polyvinyl alcohol, which has been copolymerized with a monomer carrying sulfonate or carboxylate as a sizing agent, and then coated with titanium oxide followed by hardening. It is capable of adsorbing harmful microorganisms and making them harmless. Therefore, it is usable in filters, masks and so on as well as packages for fruits.