Indoor Air Quality Solutions — Clean AC and Ventilation

In recent years, people have become more interested in indoor air quality (IAQ). People rediscovered the importance of IAQ in a context of: rising gas emissions from industrial activities and automobiles; increasing levels of PM2.5 – a particulate matter with a diameter of 2.5 micrometers or less, which is contained in yellow sand, is on the rise due to desertification, and contributes to air pollution; and the recent spread of the novel coronavirus. However, since air quality is invisible, it is difficult for the general public to understand which measures are truly effective.