IFJ-012020-FiberFiltrationQ&A_Hifyber Caryn Smith February 19, 2020 10 Views SEM cross-section view of HiFyber STP4720 nanofiber, which is said to reach a new level of efficiency and low energy consumption by reducing particle concentrations in buildings while consuming less energy as a result of the relatively low air resistance of the media. Image: HiFyber