Can’t we solve the problem with better air conditioning, filtering and decontaminating equipment?
No. To solve the problem the source of the pollutants has to be discovered and removed. There may be more than one source. And there may be more than one pollutant. The heating, ventilating and air conditioning system is rarely the source of the problem, but it is almost always a contributor. Once harmful contaminants become airborne inside a building, the air conditioning system can move them to other parts of the building. That movement can bring them into contact with a larger number of building occupants, and it can bring them to new sources of water and food. But until the source of the problem is eliminated, it will always come back.
