Chapman Valve Co. Indian Orchard Mass. 1886 Personal Note Booklet We are listing several books from the very early years of Chatman manufacturing company Boston Massachusetts.
This full-facepiece respirator offers reliable and convenient respiratory protection, lightweight comfort and ease of use. To provide protection against particulates and a wide variety of gases and vapors, this large, reusable respirator must be combined with 3M Particulate Filters or Cartridges in its bayonet holder or dual airline system. It is not designed for use in environments that are immediately dangerous to life or health.
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