When I go to any kind of indoor event I am constantly conscious of the heating & cooling system & whether or not the locale seems to have good indoor air quality.
Well, this afternoon I was invited to a prayer supper & talk, & there were about 60 people there.
When you have a number of people in one small room, it is mandatory that you have good indoor air quality. That means that you need to have a good strong Heating & Air Conditioning component that has a good whole room humidifier or dehumidifier, depending on the need, & also good AC air filters that will filter out exhausting things & allow good things to stay in the air, but some contaminants constantly manage to get through if you buy cheap AC air vents, therefore I constantly suggest getting the best AC air filters you can. In the last several years, a growing body of scientific evidence has indicated that the air inside buildings can be more polluted than the outdoor air, plus most of the people in this country are constantly inside! Not only that, but those who can least afford to be affected are the people who are almost never outdoors – young people, the elderly, & the chronically ill, & people with respiratory or heart ailments. I saw no visible signs in the room that there might not be good indoor air quality, however no one seemed to be coughing or sneezing, there was no visible dust anywhere, & breathing deeply was a relief! One thing you should constantly try to do is try to increase ventilation in your home or office. The more air that circulates in from the outside, the cleaner your air is likely to be. When fall comes, I am in heaven because I turn off the AC & open the windows.