utilized with bovine equine and other animal patients for which a valve 118 is not needed this mouthpiece 300 simply replaces the mouthpiece 112 shown in fig1 6 and 8 the remainder of the apparatus 100 is as described above in actuality the illustrated mouthpiece 300 is actually inserted into a large animal patient 39 s nostril rather than the patient 39 s mouth the terminology of u201c mouthpiece u201d therefore is used generically herein to designate that portion of the apparatus 100 that when attached to the housing 102 directs the acoustic energy into a patient 39 s airways the mouthpiece 300 consists of a base ring 302 an upper baffle section 304 a lower baffle section 306 and a flexible tip section 308 the upper baffle section and lower baffle sections snap fit together as is shown in fig9 together the upper and lower baffle sections 304 and 306 are inserted into and retained by the ring shaped base ring 302 such that the joined sections 304 and 306 may be rotated within the ring shaped base ring 302 the ring shaped base 302 in turn is threaded onto the open threaded end 106 of the housing 102 as above described with reference to the embodiment 100 shown in fig1 8 the upper and lower baffle sections 304 and 306 each include a preferably rigid internal shelf 310 and 312 respectively axially spaced from each other such that when the mouthpiece 300 is inserted into an animal 39 s nostril fluid expelled from the patient 39 s nasal cavities has to follow a tortuous path toward the diaphragm 162.