§ 868.5935. External negative pressure ventilator.
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/us/cfr/t21/s§ 868.5935·A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
(a)Identification. An external negative pressure ventilator (e.g., iron lung, cuirass) is a device chamber that is intended to support a patient's ventilation by alternately applying and releasing external negative pressure over the diaphragm and upper trunk of the patient.
(b)Classification. Class II (performance standards).