a ring shaped pan having the vents about a perimeter edge of {HEAD ~ the pan} positioned about {TAIL ~ the large open end} of the recessed can, the vents for allowing the incoming air to pass into the housing through the motor run blower 
a ring shaped pan having the vents about a perimeter edge of { HEAD ~ the pan } positioned about { TAIL ~ the large open end } of the recessed can , the vents for allowing the incoming air to pass into the housing through the motor run blower
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH