Unhealthy elements in the air you breathe can include pollutants such as particulate matter, volatile organic compounds (VOCs), carbon monoxide, sulfur dioxide, nitrogen oxides, and ozone. These pollutants can contribute to respiratory issues, heart problems, and other health conditions when inhaled in high concentrations over long periods of time. It is important to minimize exposure to these unhealthy elements by staying indoors during peak pollution times, using air purifiers, and taking measures to reduce pollution sources.