dispersing the inhalant into an inhalant chamber {e.g., dispersing the inhalant into an
inhalant chamber having a configuration selected from an exposure-target group including
but not limited to a configuration to house a nose of the animal, a configuration to house a
head of the animal, a configuration to house a part of the animal, and a configuration to
house the entire animal; however, with respect to the foregoing, those skilled in the art will
appreciate that the part of the anrmal that expands/contracts appreciably during respiration
is preferably substantially isolated from the inhalant-chamber space where pressure
measurement is taken, so that the expansion/contraction of the part of the animal that
expands/contracts appreciably during respiration does not unduly interfere with the
pressure measurement (e.g., if the inhalant chamber houses the entire animal, a second
enclosure could be used to enclose and isolate the animal's thoracic cage from the space of the
inhalant chamber where the pressure is to be measured.).
