Re-Evaluation of Ventilation/Filtration System for Revised Hand-Cull Stations of the 010 Culling System

摘要

Researchers from the National Institute for Occupational Safety and Health (NIOSH) conducted an evaluation of a redesign of the Ventition/Filtration System (VFS) developed for the United States Postal Servce (UPS) mail processing equipment--the Hand-Cull stations of the 010 Culling System. The VFS was developed and intalled by a private contractor hired by the USPS to reduce the potential for employee exposure to harmful substances that could be contained in mail pieces processed by the equipment. NIOSH was asked to assist the USPS in evaluating controls for this and other mail processing equipment after the 2001 terrorist attacks that used the mail as a delivery system for anthrax. Evaluations were based on air velocity measurements and smoke release observations. Both tests were made to evaluate contaminant capture efficiency of a redesign of the VFS at the Hand-Cull stations of the 010 Culling System.