High-volume, low-speed (HVLS) industrial fans can be used to continually circulate air in spaces from warehouses and big-box stores to restaurants and even homes. At the 2015 AIA Convention in Atlanta, ARCHITECT associate editor Hallie Busta spoke with Mike Post, a regional sales manager at MacroAir, about the company’s new AirVolution-D HVLS fan, which can measure up to 24’ in diameter.