1. Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health: NIOSH guide to the selection and use of particulate respirators. DHHS (NIOSH) Publication No. 96-101, 1996. Available from: http://www.cdc.gov/niosh/docs/96-101/. Accessed January 21, 2015.
2. S. Department of Labor, Occupational Safety & Health Administration, Regulations (Standards - 29 CFR), Appendix A to § 1910.134: Fit Testing Procedures (Mandatory). Available from: https://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDARDS&p_id=9780. Accessed January 21, 2015.
3. Respirator fit factor performance while sweating;Caretti;Am Ind Hyg Assoc J,1999
4. Protective facemask impact on human thermoregulation: an overview;Roberge;Ann Occup Hyg,2012
5. A new weighting system for mean surface temperature on the human body;Ramanathan;J Appl Phys,1964