The short answer is NO, but if we do, there’s a significant catch regarding its protection rating.
Under OSHA standards (29 CFR 1910.134), you are technically allowed to perform a Qualitative Fit Test (QLFT) on a full-face respirator, but doing so limits its Assigned Protection Factor (APF) to 10.
Here is the breakdown of why this matters and when you actually need a Quantitative Fit Test (QNFT) instead.