For some processes, a dust collector with extraordinarily high suction is required. We're talking up to 17 inches Hg (Mercury)! As you would expect, this type of unit is a heavily reinforced dust capture vessel. It is commonly used as a central vacuum system, positive or negative product receiver or high pressure bin vent in a many industries and processes.
Controlling emissions and filtration efficiencies don't have to be compromised with these types of units. Look for 99.99% (MERV 11) or 99.999% (MERV 15/16) on 0.5 micron particles. Cylindrical vessels with cyclonic tangential inlets knock out most of the dust as it enters, minimizing dust contact with the filters (which prolongs service life). Options can include explosion vents for combustible dust applications, bag-in/bag-out (BIBO) access door and continuous liner discharge for pharmaceutical or hazardous dust.
An installation photo of a high vacuum dust collection can be seen here. Additional, technical information can be found here.