| http://www.w3.org/ns/prov#value | - Exclusion criteria are: (1) Subject self-identified as having severe heart, lung, neurological or other systemic disease that one or more Investigator believes could preclude safe participation (2) Known to not tolerate wearing respiratory protective equipment for any period (3) Facial hair, or other issue such as facial adornments, precluding respirator OSHA-compliant fit testing or proper mask f
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