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READ: CDC, NIOSH - Respirator Selection Logic (2004).

4 RCs. 

This document provides a series of questions that assists the user in his selection of the appropriate respiration protection. In addition, the document identifies the criteria necessary to determine the classes of respirators that will provide the minimum acceptable degree of protection for a chemical at a given concentration.

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READ: OAR - An Office Building Occupant's Guide to Indoor Air Quality.

READ: NADCA - Position Paper on Chemical Product Applications in HVAC Systems.