Don't get fixated on just airtightness for good indoor air quality! Catch up with Dr. Allison Bailes at his booth during the 5th Annual HVAC/R Training Symposium. He explains why ventilation, filtration, source control, and moisture management are also crucial. Catch this insightful clip with Bert and Allison Bailes from the 5th Annual HVAC/R Training Symposium. #hvacschool #hvac #ventilation #indoorairquality