By Lee Morgan, Farr Air Pollution Control Cartridge dust and fume collectors are the most popular collection systems for thermal spray operations today. High efficiency cartridge collectors are compact; they operate at low pressure drop; and they can be designed to produce emissions below the new OSHA limits for hexavalent chromium (hex Cr) and other toxic metal dusts. However, many users of cartridge dust collectors mistakenly think of the replaceable pleated filter cartridges as commodity items. In point of fact, cartridges can vary markedly in design and performance. Using the right cartridges in your dust collector can ensure compliance with the hex Cr exposure limit of 5.0 mu g/m~3 and can also result in energy savings, reduced maintenance, and enhanced system reliability.
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