In the video, a person's hand is seen opening and closing a vent on a wall. The vent is white and appears to be made of plastic. The person's hand is visible in the frame, and they are using their fingers to push the vent open and close it. The wall on which the vent is mounted is white and has a rough texture. The vent seems to be located in a corner of the wall. The person's hand is the only part of their body that is visible in the video.