10 ARTIFICIAL RESPIRATORY APPARATUS AND INSTRUMENTS, NAMELY, NEBULIZERS FOR MEDICAL USE, BREATHING TUBE CONNECTORS, JUNCTIONS, STRENGTHENING WEBS AND FEEDER FINS, MEDICAL COMPRESSORS AND PUMPS, INHALATION AND BREATHING MASKS, MOUTHPIECES, TUBING, VENTURIS VALVES, MEDICAL AEROSOL HOSE, MEDICAL FLOW METERS AND INHALERS