A portable, manually-operated, noninvasive device intended to be used in conjunction with a separate compressed oxygen (O2) source and airway access device (e.g., cricothyrotomy kit) for transtracheal ventilation of a patient in an emergency situation where there is complete or partial obstruction of the airways. It includes a small unit with an on/off button, which a healthcare professional is intended to manually turn on to release O2 for patient inspiration and turn off to allow expiration; it may also include medical grade tubing and a medical gas regulator for connection to higher pressure (e.g., >50psi) O2 sources; it is not intended to provide automated ventilation.