Abstract: The disclosure is of improved "see-through" or visibly transparent anesthesia masks providing safety by electrical grounding. The improved masks are positively grounded between patient and anesthetic delivery system and may be moved freely on the face of the patient without interruption of the ground circuit. The improvement comprises, as a ground component for contact between an anatomical portion of a patient on which the mask is fitted and the anesthesia delivery system, an electrically conductive spring, resiliently mounted in the mask interior so as to make positive contact with the patient even if the edges of the mask are momentarily raised from sealing contact with the patient's facial parts.

Abstract: A bacteria filter for use in anesthesiology and respiratory care systems to filter fluid flow at a desired point in a system. The filter includes an enlarged non-conductive, transparent tubular housing having a passageway therethrough and tapering at one end to a reduced tip. A conductive connector is mounted to the reduced tip and a conductive end cap is affixed to the end of the housing distal from the reduced tip. The end cap has an opening therethrough terminating in a projecting connector. A filter element is retained in the housing and a conductive portion extends between the end cap and the conductive connector to provide a conductive pathway from end to end of the filter. The connector and the projecting end cap are adapted to be mounted within a fluid flow system to permit fluid communication with the interior of the housing so that fluid flow through the system passes in one end of the housing, through the filter element and out the other end of the housing.

Abstract: A bacteria filter for use in anesthesiology and respiratory care systems to filter fluid flow at a desired point in a system. The filter includes an enlarged non-conductive, transparent tubular housing having a passageway therethrough and tapering at one end to a reduced tip. A conductive connector is mounted to the reduced tip and a conductive end cap is affixed to the end of the housing distal from the reduced tip. The end cap has an opening therethrough terminating in a projecting connector. A filter element is retained in the housing and a conductive portion extends between the end cap and the conductive connector to provide a conductive pathway from end to end of the filter. The connector and the projecting end cap are adapted to be mounted within a fluid flow system to permit fluid communication with the interior of the housing so that fluid flow through the system passes in one end of the housing, through the filter element and out the other end of the housing.

Abstract: A bacteria filter for use in anesthesiology and respiratory care systems to filter fluid flow at a desired point in a system. The filter includes an enlarged non-conductive, transparent tubular housing having a passageway therethrough and tapering at one end to a reduced tip. A conductive connector is mounted to the reduced tip and a conductive end cap is affixed to the end of the housing distal from the reduced tip. The end cap has an opening therethrough terminating in a projecting connector. A filter element is retained in the housing and a conductive portion extends between the end cap and the conductive connector to provide a conductive pathway from end to end of the filter. The connector and the projecting end cap are adapted to be mounted within a fluid flow system to permit fluid communication with the interior of the housing so that fluid flow through the system passes in one end of the housing, through the filter element and out the other end of the housing.

Abstract: A bacteria filter for use in anesthesiology and respiratory care systems to filter fluid flow at a desired point in a system. The filter includes an enlarged nonconductive, transparent tubular housing having a passageway therethrough and tapering at one end to a reduced tip. A conductive connector is mounted to the reduced tip and a conductive end cap is affixed to the end of the housing distal from the reduced tip. The end cap has an opening therethrough terminating in a projecting connector. A filter element is retained in the housing and a conductive portion extends between the end cap and the conductive connector to provide a conductive pathway from end to end of the filter. The connector and the projecting end cap are adapted to be mounted within a fluid flow system to permit fluid communication with the interior of the housing so that fluid flow through the system passes in one end of the housing, through the filter element and out the other end of the housing.

Abstract: A bacteria filter for use in anesthesiology and respiratory care systems to filter fluid flow at a desired point in a system. The filter includes an enlarged nonconductive, transparent tubular housing having a passageway therethrough and tapering at one end to a reduced tip. A conductive connector is mounted to the reduced tip and a conductive end cap is affixed to the end of the housing distal from the reduced tip. The end cap has an opening therethrough terminating in a projecting connector. A filter element is retained in the housing and a conductive portion extends between the end cap and the conductive connector to provide a conductive pathway from end to end of the filter. The connector and the projecting end cap are adapted to be mounted within a fluid flow system to permit fluid communication with the interior of the housing so that fluid flow through the system passes in one end of the housing, through the filter element and out the other end of the housing.

Abstract: A bacteria filter for use in anesthesiology and respiratory care systems to filter fluid flow at a desired point in a system. The filter includes an enlarged non-conductive, transparent tubular housing having a passageway therethrough and tapering at one end to a reduced tip. A conductive connector is mounted to the reduced tip and a conductive end cap is affixed to the end of the housing distal from the reduced tip. The end cap has an opening therethrough terminating in a projecting connector. A filter element is retained in the housing and a conductive portion extends between the end cap and the conductive connector to provide a conductive pathway from end to end of the filter. The connector and the projecting end cap are adapted to be mounted within a fluid flow system to permit fluid communication with the interior of the housing so that fluid flow through the system passes in one end of the housing, through the filter element and out the other end of the housing.