For specific populations, the U.S. Centers for Disease Control and Prevention (CDC) suggests transparent masks as an option. Per the U.S. Occupational Safety and Health Administration (OSHA), employers should provide face coverings to all workers at no cost, and must consider reasonable accommodations for those who require clear coverings.
Under Title II of the Americans with Disabilities Act (ADA) in the U.S., government entities including courts are required to provide effective accommodations upon request, including auxiliary aids. The ClearMask™ brand is an auxiliary aid.