Windex is a popular cleaning product primarily used for cleaning glass surfaces. It is known for its ability to remove dirt, fingerprints, and smudges, leaving surfaces streak-free and shiny. The formula typically contains ammonia, which helps break down grime, and is available in various scents. In addition to glass, Windex can also be used on other surfaces like countertops and appliances, although users should check labels for compatibility. The product is available in spray bottles for easy application and is widely used in homes, offices, and commercial settings for maintaining cleanliness.