77BP Series Backpack Half Mask Respirator. Ideally suited for use under welding helmets and faceshields, the Backpack has earned universal acceptance from workers involved in a number of operations including welding and paint spray.

Specifications: The air-purifying elements are suspended on the worker's back via two flexible breathing tubes. This configuration holds the air-purifying cartridges or filters away from the work zone where there are higher concentrations of contaminants, resulting in longer service life for the cartridges and filters. Same silicone facepiece and suspension as the popular North 7700 half-mask respirator. Compliance: NIOSH / MSHA Certified. Special Information: The backpack respirators serve the needs of those workers who require a low profile, dual catridge half-mask respirator.
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