Human: I've heard that smog is a problem in the winter. What can I do to protect myself? Assistant: 
One way to protect yourself from smog during the winter is to reduce your car's idling time and drive with your windows rolled down when possible. You should also try to avoid driving at night, as this can increase the risk of breathing in harmful pollutants. Additionally, you may want to consider using air purifiers or masks if you're spending extended periods of time indoors.