The invention relates to methods and apparatuses for transporting {HEAD ~ a flow} of air and {TAIL ~ particulates} through a vacuum cleaner 
The invention relates to methods and apparatuses for transporting { HEAD ~ a flow } of air and { TAIL ~ particulates } through a vacuum cleaner
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH