The material used in the work is four 50cm * 50cm Hanemler photographic art paper, which is
the highest grade paper output of the photographic work and theoretically will not fade or change color for a hundred years. The artist hung four sheets of paper in the rental room (directly above the bed). The enclosed rental housing space, photo paper, and the artist's living state form a work mode similar to printer printing. The artist's repeated and excessive smoking actions
continuously act on the photo paper, and the smoke continuously adds up and changes the color
of the photo paper. The artist's living state for a period of time is visualized by the enclosed space and the photo paper.