POUCH FOR THE BLOWER UNIT OF A POWERED AIR PURIFYING RESPIRATOR

摘要

A pouch is provided for the blower unit of a powered air-purifying respirato r system, to isolate the blower unit from hazardous material such as potential ly- explosive dust or gas. The pouch has an opening at one end through which the blower unit can be inserted into the pouch, and is shaped at the other end t o receive the blower unit. It also has air inlet openings positioned to regist er with air inlets of the blower and permit the connection of the filter cartridges thereto, and an air outlet opening positioned to register with th e air outlet of the blower unit and permit the connection thereto of a breathi ng tube of the respirator system. When the blower unit is inside the pouch, sealing means at the pouch openings inhibit or prevent particulate or gaseou s material from entering the pouch through the openings.