The portable environmental control chamber provides gas, as needed, to encourage healing and prevent infection. In one embodiment, the environmental control chamber acts as a hyperbaric chamber that can be affixed over a wound to supply oxygen to the wound bed. In another embodiment, the environmental control chamber acts as a catheter tent that prevents microbes from entering the catheter site. The environmental control chamber comprises a gas impermeable film that forms a tent over a wound or catheter site to which is attached two or more flexible ports that allow gas to be applied to a site. The chamber is attached to the body using an adhesive.
