The technology belongs to the method technology of air quality improvement of a room, can reduce noise, and an anti-haze, an anti-noise and an anti-allergic are achieved. A sealing object is additionally arranged on a door and a window which are in connect with the outside air of the room, so that noise reduction is achieved; anti-haze, anti-noise and anti-allergic air filters are installed on thedoor, the window or a wall body (as far as possible on the wall body, because beauty is achieved) connected with the outside air of the room, the window and the door are closed when in need, a toiletexhaust switch or a kitchen exhaust switch with an exhaust port exhausting function is arranged in the room, air in the room is discharged into filtered clean air. The room additional technology of the anti-haze, the anti-noise and the anti-allergic has the advantages that the structure of a house is not changed, construction is easy, use is convenient, energy is saved, and environment-friendly is achieved; and the door and the window which are in contact with the outside air of the room cannot opened for a long time, so that the indoor air is clean, and the anti-haze, the anti-noise, the anti-allergic and the like can be achieved.