Glass, Video, Monitor, Photograph, Pate de Verre kiln formed glass. 50″ x 60″ x 17" This conceptual work is consisted of three parts, Glass mouth mask, video and a background. Glass mimics a one-day used mouth mask which is dirty because the bad air. Video combines a forecast performance with an episode of real news. I acted forecaster to report the serious air pollution issue. The background shows the process of transforming from the Green Screen form to a “real” forecast form. I use hundreds of real mouth masks to make a Chinese map，which shows PM2.5 result. Black shows the most worst air pollution, the red is worse, yellow is good, green and blue are the area with good quality of air. I put the video part of this work on Youtube. It is Chinese base forecast.