#5 Stay INDOOR to get rid of Air Pollution 28 October 202228 October 2022 by Yiu Fung YIPin Featured Student: Miss, we got smog outside today, can we close the windows to have better air? Miss: Yes, of course. But how do you know it is better after you close the windows?Student: By closing the window, pollutants are blocked from entering inside. In that case, we are breathing clean air! Miss: Smog is visible because of the size of particles. But what about indoor-created gas? Those harmful invisible indoor pollutants.Student: Do you mean other pollutants? Miss: Yes, for example, cleaning products gas off Volatile Organic Compounds, a toxic cocktail of gas. Compared to the visible smog outside, the invisible indoor air pollutants could be even more harmful.Student: Is that the reason why you brought this indoor air quality monitor today? Miss: Yes! Indoor air quality monitors can help us “see” the invisible indoor air pollutants and quantify them. Understanding the issue is the first step to solve a problem!