An endotracheal suction system comprising: an endotracheal tube comprising an elongate tubular body extending between a distal tube portion and a proximal end port and defining a longitudinal axis, the distal tube portion adapted for suctioning bodily fluids disposed in a patient's throat region; and an airway adapter device comprising an elongate body defining a lumen extending between a first end of the body and a second end of the body along a longitudinal axis, the body including a mid-portion defining a constant inner-diameter luminal region, a first end portion formed between the first end and the mid-portion as a first fitting defining a first tapered luminal region which extends over the first end portion and is adapted for receiving and releasably connecting to a male type connector, wherein the first fitting includes a female fitting that comprises a cylindrical exterior surface, and the first tapered luminal region is a tapered region of the lumen adapted for receiving and sealingly mating with the proximal end port of the endotracheal tube, and a second end portion formed between the mid-portion and the second end as a second fitting comprising a tapered exterior surface configured for inserting into and releasably connecting to a female type connector, wherein the second fitting defines a second tapered luminal region which extends over a length of the second end portion along the longitudinal axis wherein the second fitting includes a male fitting, and the tapered exterior surface is configured for insertion in a female type connector of a vacuum line. an endotracheal tube comprising an elongate tubular body extending between a distal tube portion and a proximal end port and defining a longitudinal axis, the distal tube portion adapted for suctioning bodily fluids disposed in a patient's throat region; and an airway adapter device comprising an elongate body defining a lumen extending between a first end of the body and a second end of the body along a longitudinal axis, the body including a mid-portion defining a constant inner-diameter luminal region, a first end portion formed between the first end and the mid-portion as a first fitting defining a first tapered luminal region which extends over the first end portion and is adapted for receiving and releasably connecting to a male type connector, wherein the first fitting includes a female fitting that comprises a cylindrical exterior surface, and the first tapered luminal region is a tapered region of the lumen adapted for receiving and sealingly mating with the proximal end port of the endotracheal tube, and a second end portion formed between the mid-portion and the second end as a second fitting comprising a tapered exterior surface configured for inserting into and releasably connecting to a female type connector, wherein the second fitting defines a second tapered luminal region which extends over a length of the second end portion along the longitudinal axis wherein the second fitting includes a male fitting, and the tapered exterior surface is configured for insertion in a female type connector of a vacuum line. a mid-portion defining a constant inner-diameter luminal region, a first end portion formed between the first end and the mid-portion as a first fitting defining a first tapered luminal region which extends over the first end portion and is adapted for receiving and releasably connecting to a male type connector, wherein the first fitting includes a female fitting that comprises a cylindrical exterior surface, and the first tapered luminal region is a tapered region of the lumen adapted for receiving and sealingly mating with the proximal end port of the endotracheal tube, and a second end portion formed between the mid-portion and the second end as a second fitting comprising a tapered exterior surface configured for inserting into and releasably connecting to a female type connector, wherein the second fitting defines a second tapered luminal region which extends over a length of the second end portion along the longitudinal axis wherein the second fitting includes a male fitting, and the tapered exterior surface is configured for insertion in a female type connector of a vacuum line.