Air can act as a screen under specific conditions, particularly in experiments involving interference patterns like the air wedge experiment. For larger-scale applications, factors such as the uniformity of air thickness and environmental stability are crucial. An air wedge interferometer is a common setup for observing these effects, relying on the interference of light waves. To scale the experiment, maintaining consistent air quality and minimizing disturbances will be essential. Understanding these principles will enhance the effectiveness of using air as a medium in optical experiments.