This invention provides a novel blending and application of technologies that creates a low cost, disposable bio-secure environment to temporarily hold, and where required to transport, patients who are suspected of having an infectious or contagious disease requiring contact isolation precautions. Upon initial presentation of such patients, health care facilities are able to hold such patients while they are initially assessed and then, if need be, transported to an appropriate biosafety level unit. The described Environmental Unit differs significantly from current products in many ways. The unique design provides a unit that is disposable and relatively inexpensive. The frame is designed to integrate with hospital stretchers and beds. The unit is large enough for a patient to sit up and allows movement of arms and legs and the ability to eat and drink while isolated on a bed.