When filling in the worksheet and working on the mathematical problems, be sure to show your work in the event that you do not identify the correct answer (attach a separate sheet if you need to do so). Depending on how you arrived at your result, you may receive partial credit.
Use these websites to help you with your answers:
https://www.osha.gov/dte/library/ppe_assessment/pp…
https://www.cdc.gov/niosh/npg/default.html
https://www.osha.gov/SLTC/etools/respiratory/index…
https://www.osha.gov/Publications/3352-APF-respira…
File out the worksheet attached and don’t use any screen shoots for the answers

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