HVAC In Action
Campus Heating, Ventilation, and Air Conditioning (HVAC) systems are designed to keep us comfortable and with their ventilation and filtration systems may also provide the added benefit of mitigating risk of the spread of disease. But we should still all do our part to follow the guidelines on the Campus Ready website such wearing face coverings and maintaining physical distance.
The HVAC systems serving laboratory spaces are different from those serving other types of spaces on campus. The system serving a lab space supplies 100% outside air, meaning no air exhausted from a lab space is recirculated back into the system - it is all exhausted outside the building. Follow the arrows below to see the path that air takes through a laboratory building.
HVAC systems serving other types of spaces, such as office, classroom, and/or community spaces have different ventilation requirements than laboratory buildings. Systems serving non-laboratory spaces are designed to bring in at minimum the amount of outside air required for the design occupancy of the spaces (or the measured occupancy in the case of Demand Controlled Ventilation) and mix it with air returned from the spaces. Most systems are also designed to bring in more outside air (up to 100%) when outdoor conditions are favorable (ie, not too hot or cold). This mixed air is then filtered at the central unit before it is supplied back to the space. Follow the arrows below to see the path that air takes through a non-laboratory building.