Air filtration is included in Engineered Systems’ editorial calendar this month, so I’m going to touch on some of the issues and concerns regarding the design, installation, commissioning, and operation of filters. You might want to stop reading this column and pick up your handy 2020 ASHRAE Handbook, “HVAC Systems and Equipment,” to refresh your knowledge of air filters by reading Chapter 29, “Air Cleaners for Particulate Contaminants,” as well as the 2021 Handbook, Chapter 11, “Air Contaminants.” Collectively, these two chapters represent 37 pages on this topic.
Here is a list of things to do when designing an air filtration system or air filters in series for your central air-handling system project application.