An air curtain is a machine that blows a controlled stream of air across an opening to the other side to create an air seal. The air curtain, also known as an air door or fly fan, is not the same as ...

For many HVAC contractors, updates to ASHRAE Standard 90.1-2019 “Energy Standard for Buildings Except Low Rise Residential Buildings” on air curtains this summer didn't exactly make for “breaking news ...

Arenas, convention centers, and other large, high-capacity, multiuse buildings present a number of challenges from the standpoint of air infiltration through open doors — some of which can be ...