This document provides information on factors related to human anthropometry, physiology, ergonomics, and performance for the preparation of standards for performance requirements, testing, and use of respiratory protective devices.

This document contains information related to respiratory and metabolic responses to rest and work at various intensities. Information is provided for the following:

• metabolic rates associated with various intensities of work;
• oxygen consumption as a function of metabolic rate and minute ventilation for persons representing three body sizes;
• peak inspiratory flow rates during conditions of speech and no speech for persons representing three body sizes as a function of metabolic rates.

The information contained within this document represents data for healthy adult men and women of approximately 30 years of age, but is considered to be applicable for the age range of the worker population.