The device is particularly useful to clean air exhausted from a tail pipe connected with an internal combustion engine, and is also useful to clean gases emitted from pipes and {HEAD ~ stacks} connected with {TAIL ~ combustion type devices} such as are commonly found in industrial plants 
The device is particularly useful to clean air exhausted from a tail pipe connected with an internal combustion engine , and is also useful to clean gases emitted from pipes and { HEAD ~ stacks } connected with { TAIL ~ combustion type devices } such as are commonly found in industrial plants
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH