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Overview <br />This application note describes how to install and maintain the E700-FILASSY <br />inline filter. <br />Vision Systems strongly recommends using the E700-FILASSY inline filter for <br />VESDA systems installed in harsh and dirty environments. <br />The E700 three stage filter was found to be the most effective filter design <br />during testing conducted by Vision Systems. The key performance <br />parameters tested were the volumetric flow rate, pressure drop, smoke <br />detection sensitivity and maintenance requirements. <br />'A <br />Vision Systems <br />