The darkest legal window tint typically available is often referred to by a specific term. This extremely dark tint allows very little light to pass through the window. As an illustration, a tint that allows only 5% of light to penetrate the window is often described using that term. This level significantly reduces visibility into the vehicle.
This dark tint is frequently chosen for privacy and security purposes. It offers occupants a higher degree of seclusion from outside observation and can deter potential theft by making it difficult to see inside the vehicle. Historically, such dark tints were associated with executive transport and vehicles intended to provide maximum passenger privacy.