Methods, apparatus, and systems for reducing transmission of aerosol droplets in a medical or dental procedure are described. One protective shield system includes a base plate, a shield having at least one transparent section, and a pipe or conduit comprising a plurality of holes thereon. The shield is configured to be removably attached to the base plate to allow attachment of the shield to the base plate prior to the medical or dental procedure and removal of the shield from the base plate after the medical or dental procedure. The pipe or conduit is positioned adjacent to an inner surface of the shield and on at least part of a perimeter of the shield. The pipe includes an end that is configured to connect to a suction system to enable removal of the aerosolized particles from below the shield during the medical or dental procedure.