An oxygen delivery mask for transoral medical procedures that provides an efficient means for safely delivering oxygen to patients at higher flow rates. The oxygen delivery mask comprises a mask body defining a wearable face covering that includes a nasal compartment, a mouth opening, two fastening apertures, four mask inlets and a mask outlet with an integral delivery tube that includes four inlet ports and a sealed hole and an exhaust port. The oxygen delivery mask is shaped to contour to the face of a wearer, and when in use, enables input gas to be directed from the delivery tube into the inside of the mask and output exhaust gas to be expelled from the inside of the mask. The oxygen delivery mask thereby allows for treatments with oxygen flow rates greater than three liters/minute to be delivered to patients without concern of causing trauma to the patients nostrils.