) Standing. Air velocity in the room is generally low.
A plume is apparent near the occupant due to metabolic
heating. A relatively high velocity of about 0:22 m=s caused
by inhalation is observed at the mouth. In correlation with
the plume from metabolic heat, fresh air enters from the
opening at the bottom of the room. As is shown clearly
in Fig. 8(2), air inhaled by the occupant is larg