Abstract: An energy efficient air flow control system includes exhaust devices of a building air flow management system. Each of the exhaust devices includes a controller for controlling functions of its respective exhaust device. A first sensor is coupled to each of the exhaust devices and respective controllers. A computer is coupled to the exhaust devices via respective controllers. A second sensor determines a fan speed of a supply air fan, and the second sensor is coupled to the computer. Logic executable by the computer receives user-selected settings for controlling operation of the exhaust devices, collects data from the controllers via corresponding first sensors and from the second sensors, applies the data to the settings, and modifies operation of the system via a controller of at least one of the exhaust devices when, in response to applying the data, it is determined that a condition defined in the settings is met.

Abstract: A reusable isolation enclosure has a closure member adapted for purging gases from the enclosure. The closure member includes filters and vapor and moisture drains. Replacement of ambient environmental gases in the sealed enclosure is provided. A purge gas is provided by the gas replacement system which quickly connects to the enclosure and quickly disconnects from the enclosure. Suction cups surrounding the ends of gas connection lines form the interface to the filter membrane and form a sealed connection with the closure member. No other mechanical connection than the suction cups is required. The outlets and inlets of the purging system and the exhausting system are automatically disconnected by a spring valve when the isolation container to be purged is removed. When the closure member of the isolation enclosure is placed upon the purge system the weight of the package compresses the valve spring opening the valves, permitting the purge gas to flow.

Abstract: A vessel, reflective to microwave electromagnetic energy, having at least one aperture to permit passage of said microwave energy to its contents and a shielding device, responsive to a preselected internal temperature of the vessel contents, to close said at least one aperture to prevent further passage of said microwave energy to the vessel contents.