Despite their complex appearance, fan curves are fairly easy to interpret once one gains an understanding of the conventions and terminology used, enabling selection and specification of the best fan for an application.

Air curtains offer an adequate, efficient way to address air infiltration in large, high-capacity, multiuse facilities. 

With the 2019 editions of NFPA 80 and NFPA 105 came the allowance for remote periodic testing of smoke and combination fire/smoke dampers. For building owners, this can mean significantly reduced costs and increased safety.

The 2019 edition of ANSI/ASHRAE/IES 90.1, “Energy Standard for Buildings Except Low-Rise Residential Buildings (ASHRAE 90.1),” adopts a new fan efficiency metric, Fan Energy Index (FEI).