Avoiding secondhand smoke can be challenging, especially in environments where smoking is prevalent. However, there are measures that can be taken to reduce exposure: - Implementing smoke-free policies in homes, workplaces, and public places. - Encouraging smokers to smoke outside and away from non-smokers. - Using air purifiers and ventilating spaces to reduce smoke concentration. - Educating the public about the dangers of secondhand smoke and promoting smoking cessation programs.