Dirty air is classified as a silent public health emergency by the WHO. Air pollution affects our physical and mental health, and many research data have emerged in recent years. The latest research shows that it not only affects respiratory health but also increases the risk of depression, especially for those over 64 years old.
After COVID-19 slowed down, countries began to lift mask restrictions. Compared with Western countries, Asians seem less willing to take off masks. About 80% of South Korea, Japan, and Taiwan people continue to wear masks and enjoy the various benefits.