FARR AIR POLLUTION CONTROLS' Gold Series dust collector has a new high performance explosion vent for the capture of explosive dusts. The new "X" vent is NFPA-approved and CD and ATEX certified for European use. The multi-ribbed vent delivers a very high negative static operating pressure rating of -80"WC for enhanced performance, designed to open at +1 PSI. Suitable for retrofit use and rated for 350°F operating temperatures.