Profile: Progressive Rubber Works is a supplier of anesthetic and medical rubber products. We are an ISO 9001:2000 certified company. Our products include surgical masks, laryngoscope, anti-static face mask and gasket silicon rubber. Anesthetic machine is used to support the administration of anesthesia. The most common type of anesthetic machine in use is the continuous-flow anesthetic machine, which is designed to provide an accurate and continuous supply of medical gases mixed with an accurate concentration of anesthetic vapor. Our machine also delivers the mixture to the patient at a safe flow. Laryngoscope is introduced deep into the pharynx and after that it is slowly withdrawn, until the opening of laryngeal is visible. This process is advantageous when the opening of mouth is small and larynx is somewhere interior. A long curved laryngoscope blade can be used as a straight blade by directly lifting the epiglottis. The blade is curved in a half cylinder manner and flattened at the distal, where a bulb is provided for proper light.