The modular down flow cartridge collectors are specially designed for welding fumes, sanding/buffing applications, sandblasting or light particle filtration. Energy savings through air recirculation is an available option if applicable. When solid particles enter the collector at high velocity, the top row of cartridges which is equipped with a series of deflectors protects the cartridges . This also ensures that the upper portion of the cartridge does not get clogged up. Pulse cleaning systems are available with timers or pressure differential controllers. Dust storage options vary from low profile drawers to high capacity drums and containers. Safety features such as explosion venting doors, blow back, abort dampers, spark detection systems are available when the collector is designed to be used with reactive material.