A device that uses oxygen under pressure to deliver artificial ventilatins. Its trigger is placed so that the rescuer can operate it while still using both hands to maintaine a seal on the face mask. It has automatice flow restriction to prevent over

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1. A device that uses oxygen under pressure to deliver artificial ventilatins. Its trigger is placed so that the rescuer can operate it while still using both hands to maintaine a seal on the face mask. It has automatice flow restriction to prevent over