Referring to FIG 2, the fugitive gases shown as being emitted from {HEAD ~ various locations} within the building 100 of FIG 1 are collected into a collector source 111 by {TAIL ~ way} of appropriately sized and appropriately located ducting, piping, tubing and the like 
Referring to FIG 2 , the fugitive gases shown as being emitted from { HEAD ~ various locations } within the building 100 of FIG 1 are collected into a collector source 111 by { TAIL ~ way } of appropriately sized and appropriately located ducting , piping , tubing and the like
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH