SheltAir consists of a grid shell of plastic rods. These are assembled flat, then pushed up into the pod's final, domed shape through a pneumatic formwork of inflatables. In only eight hours, the isolation pod is ready for work. The inflatable pod is made of PVC-coated polyester, and stays in place once inflated, doubling as the building's architectural envelope. SheltAir is developed by German architectural engineer Gregory Quinn. His inflatable cushions could help coronavirus patients isolate. The envelope is heat-welded to an outer skin to create a completely sealed environment, which is crucial when it comes to isolating with a virus like Covid-19. "One of the problems that hospitals are facing is that staff and visitors are at risk of infections," Quinn told Dezeen. "So smaller units of containment make a lot of sense. To create negative pressure and filter out any particles or droplet you need a sealed environment," he added.