PROBLEM TO BE SOLVED: To provide an economical deodorizing filter device with excellent deodorization efficiency by easily bringing a deodorization sheet into contact with air when the air passes through a duct.SOLUTION: The deodorizing filter device includes a blowing unit for sending the air into the duct on one end side of the duct and has the deodorization sheet inside the duct. By disposing the deodorization sheet on at least a part inside the duct roughly in parallel with the distribution direction of the air and away from the inner wall of the duct, the deodorizing filter device with excellent deodorization efficiency is attained.
