Abstract: The present invention is a submersible pump system that includes a main housing, which is watertight and contains a submersible pump therein. There is a liquid suction inlet connected to the main housing and adapted for functional connection to a liquid source. This may be a direct pipe connection, or an open intake. There is also a one way check valve functionally connected to the main housing and located downstream from the liquid suction inlet, adapted to permit liquid to flow from the inlet to the main housing and to prevent liquid from oppositely flowing. The submersible pump has electrical power wiring and control wiring connected thereto and extending out of the main housing with a watertight seal. The pump has a submersible pump inlet to pump liquid from the main housing, and a pump outlet directly connected to a liquid flow outlet extending out through the main housing for liquid distribution therefrom.

Abstract: The present invention is an air treatment system for airplanes. It includes: (a.) an environmental conditioning system located within an airplane to provide at least one of heating, cooling, and compressing air, and has ingress ductwork to remove air from an airplane cabin into the system, and an air movement mechanism, e.g. blowers, or equivalent devices, to cycle the air from the cabin and into the environmental conditioning system via the ingress ductwork. It also has egress ductwork for return of treated air into the cabin; and, (b.) an ionic oxygen generator connected to one or both of the ingress ductwork and the egress ductwork. The ionic oxygen generator may be one or more, and should be of sufficient capacity to generate at least 200 ions of ionic oxygen per cubic centimeter of incoming air for removal of airborne contaminants and odor from exiting air before it is returned to the cabin.