To provide an interior disinfecting and deodorizing apparatus capable of disinfecting and deodorizing every corner of an interior in a short time by using a small amount of aqueous hypochlorous acid.

In the interior disinfecting and deodorizing apparatus, an air feed pipe 2a is disposed along a ceiling 1a of an air shower room 1, a plurality of discharge pipes 2b for discharging a gas downward from the air feed pipe 2a to the air shower room 1 are provided on the air feed pipe 2a, the air feed pipe 2a is formed so that compressed air and the mist of the aqueous hypochlorous acid can mixedly flow through the inside of the pipe 2a, and the mixed gas is discharged through openings of the discharge pipes 2b.