What is one of the consumer products that commonly contains lead?

One of the consumer products that commonly contains lead is paint. Historically, lead was a common ingredient in paint because it helped to enhance color durability and speed up drying time. Lead-based paints were widely used in homes and buildings, especially prior to regulations limiting its use. As awareness of the health risks associated with lead exposure, particularly in children, grew, many countries banned or restricted the use of lead in paints.

Lead can be harmful when ingested or inhaled, causing various health issues including developmental delays in children and other serious health effects in adults. This is why the presence of lead in paint is a significant concern, especially in older homes where layers of lead-based paint may still exist.

The other options, while they may have associated risks or concerns, do not commonly contain lead as a standard component. For instance, plastic bottles are mostly made from polymers and do not typically involve lead, and wooden furniture and glass windows are not standard sources of lead exposure in the same way that lead-containing paint is.