Beginning in 2005, Windblade has been creating, promoting and evolving the oxygen concentrator based solutions for general aviation, acting as the exclusive general aviation distribution channel for Inogen. With the advent of the Inogen G5 being readily available worldwide via Inogen’s normal medical distribution channels, Windblade has shifted its focus to providing the essential aviation Interface kit for the G5 oxygen concentrator (i.e., Windblade no longer sells the Inogen products directly). The oxygen concentrator system (FAA certified for commercial aviation) can be source directly from Inogen or its medical distribution partners.