Controlling Pollutant Pathways

Mouse over the picture above to see messages which are referenced in more detail below.

(Hot Spot over HVAC system connecting the rooms.)

Remember...“The HVAC System is a major transport device for both air and pollution in a building.”
Any pollution source in one part of the building may become a problem to other parts of the building served by the same air handler, as the pollution travels through the return air stream and recycles as part of the supply air through the air handling system.
In the picture, the smoke from a private office travels to unwitting recipients elsewhere in the building.