* Allow for suctioning a patient on a ventilator without loss of PEEP or mean airway presure. * Reduce oxygen desaturation by allowing constant patient ventilation. * Reduces the potential of infection to the clinician. * Maintains a sealed airway to reduce exposure to secretions. * Eliminates patient “Spray Black” * Provide maximum suction and is designedto reduce trauma. * Enhance patients safety avoids disconnectionfrom the ventilator during catheter change-out or untangling of lines * Decrease accidental extubation ordecannulation during moving of the patient. * Color coded rings provide fast size recognition