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Part 5: Building Pressurization for Acceptable IAQ
Building pressurization is paramount to acceptable IAQ. Negative building pressure transports moisture, hot and cold outdoor air, and unfiltered outdoor air across […]
Part 4: How to Improve Demand Control Ventilation
Demand Control Ventilation (DCV) is desirable in high population density and variable occupancy spaces. This video discusses single zone DCV, when DCV […]
Part 3: Recognizing the Pitfalls of CO2 Ventilation Control
In this video we will covers CO2 ventilation control and how it is becoming increasingly popular as an energy-saving method while exposing […]
Part 1 Dilution Ventilation and IAQ
In this video, David Dougan discusses the steps to achieve acceptable IAQ requires understanding the contaminants of concern and methods to maintain […]
The Importance of Controlled Ventilation in Schools
Proper outdoor air ventilation in schools is crucial for occupant health and well-being. Ventilation rates can vary due to factors like the […]
Ventilation Control for COVID-19 & Beyond
Providing a healthy indoor environment requires an understanding of outdoor air ventilation. The pandemic of coronavirus disease 2019 (COVID-19), brought about by […]
Improve Traditional CO2-DVC with Outdoor Airflow Measurement
This paper clarifies industry misconceptions regarding DVC and exposes the significant uncertainties associated with CO2-DVC. Additionally, the paper proposes two improved methods […]
The Importance of Airflow Measurement
This article explains the importance of ventilation and outdoor air within a building. Under-ventilation of outdoor air also affects building pressure, increasing […]
Indoor Environmental Quality: Designing Healthier Interiors
Review of the main causes for poor indoor environmental quality (flaws in HVAC systems, cleaning chemicals and material off-gassing), the ever-changing science […]