The emerging use of hydrogen peroxide vapor (HPV) biodecontamination technology in the late 1990s was initially implemented as part of an alternate strategy for disinfecting rooms, areas, and whole buildings. The technology was developed with rapid cycles and was adopted by barrier isolator users allowing for rapid, effective, and validated bio-decontamination cycles inside critical zones. In the years to follow, the use of HPV technology spread throughout the development and production pipelines of small- and large-molecule biopharmaceutical products. This article will consider the current and future uses of HPV technology from the perspective of the development through manufacture of a biologically-derived product…