PROBLEM TO BE SOLVED: To provide a material that can be used to absorb formaldehyde emitted from materials for a room or a building, a furniture itself, or the like by developing a formaldehyde absorbing agent that is derived from a natural material and of which active ingredient is not harmful to a human body.
SOLUTION: This formaldehyde absorbing agent is an epicatechin gallate and/or epigallocatechin gallate as an active material.