Human: How can I reduce Carbon Monoxide emission levels? Assistant: 
To reduce Carbon Monoxide emissions, it is important to take the necessary steps such as limiting gasoline engine use, maintaining vehicle engines regularly, and reducing exhaust fumes from poorly maintained engines. Additionally, reducing the amount of fossil fuels used in the home, replacing them with cleaner energy sources, regularly servicing heating systems, and investing in better insulation and ventilation can help reduce Carbon Monoxide emissions.