The term "filtered" refers to something that has been passed through a filter, which is typically a device or system designed to remove unwanted particles from a liquid or gas. In other words, it means to separate out certain elements while allowing others to pass through. This can be done mechanically by using materials such as paper, cotton, or wire mesh, or electronically by using computer algorithms. The process of filtering is often used in various industries and applications, including water treatment, air purification, and data analysis, among many others.