How do I know which type of Powered Air Purifying Respirator (PAPR) to use?

The final decision on which type of PAPR to use should be made by an on-site safety specialist who has reviewed the entire welding application, including the base metals, possible coatings on the metals, filler metals, shielding gasses, welding process, etc. Air samples collected from the worksite determine the level of exposure to certain contaminants and the type of PAPR filter needed. An industrial hygienist should be consulted prior to final filter selection. More.

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