Abstract: Systems and methods are disclosed that include providing a filter assembly having a filter housing and a filter medium disposed within and/or carried by the filter housing. The filter medium is configured to be exposed to an external environment and collect, filter, or otherwise remove aerosols (which may be contaminated with bacteria, viruses, or a combination thereof) from the external environment when coupled to an evacuation component, such as a dental high vacuum evacuation (HVE) line.

Abstract: An oral cannula for placement within the oral cavity of a patient for delivery of a treatment gas and for collecting end-tidal carbon dioxide (ETCO2) includes a treatment gas delivery lumen including at least one aperture near a distal end of the treatment gas delivery lumen; an end-tidal CO2 sampling lumen. The cannula also includes a cap having (i) a gas diverter adapted for diverting at least a portion of the treatment gas and (ii) an end-tidal CO2 inlet including flutes and apertures there between that are in communication with the end-tidal CO2 sampling lumen. The oral cannula is adapted for custom bending or has a bend such that the oral cannula is insertable and retainable in a patient's mouth and functional for supplying a treatment gas and sampling gas exhaled by the patient.

Abstract: An oral cannula for placement within the oral cavity of a patient for delivery of a treatment gas and for collecting end-tidal carbon dioxide (EtCO2) includes a treatment gas delivery lumen including at least one aperture near a distal end of the treatment gas delivery lumen; an exhaled gas sampling lumen. The cannula also includes a cap having (i) a gas diverter adapted for diverting at least a portion of the treatment gas and (ii) an exhaled gas inlet including flutes and apertures there between that are in communication with the exhaled gas sampling lumen. The oral cannula is adapted for custom bending or has a bend such that the oral cannula is insertable and retainable in a patient's mouth and functional for supplying a treatment gas and sampling gas exhaled by the patient.