A microbolometer imaging apparatus having an array of selectable substrate-isolated microbolometer detectors, a detector selection controller, and a readout circuit. This action makes the compounds useful for treating HIV infection and AIDS. The pressure sensor is located closer to the nozzle hole than the pressure-accumulation vessel. The discharge tube has a symmetry axis in the plane and sealed tube ends provided with electrodes, and the tube ends re-enter said zone. A product is sealed within the inner package.