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. Author manuscript; available in PMC: 2023 Apr 5.
Published in final edited form as: J Occup Environ Hyg. 2021 May 26;18(7):305–313. doi: 10.1080/15459624.2021.1919685

Figure 1.

Figure 1.

Total inward leakage (TIL) for elastomeric half-mask (EHR), full-facepiece (FFPR), powered air-purifying respirators-tight-fitting (PAPR-TF), and PAPR-loose-fitting (PAPR-LF) respirators for corn oil and NaCl aerosol. EHR models A – MSA Comfo Classic and B – North 7700; FFPR models C – 3 M 7800 and D – MSA Advantage 3000; PAPR-TF models E – Bullard EVA and and F – MSA Advantage 4000; PAPR-LF models G – 3 M Air-Mate and H – Bullard EVA. *Significantly (p ≤ 0.05) larger than NaCl aerosol for EHR, and significantly (p ≤ 0.05) larger than corn oil aerosol for tight-fitting and loose-fitting PAPRs.