used to provide a measured and continuous supply of gases (oxygen, nitrous oxide, etc.), mixed with a required concentration of anesthetic vapor to the patient at a required pressure and rate

vaporizes the anesthetic

to deliver oxygen and/or to administer aerosolized medications

Suction catheters used to remove secretions from the mouth, oropharynx, trachea and bronchi

a tube introduced into the patient's trachea to maintain a patient to ensure that air reaches the lungs for respiration

to filter out dust particles from the gas being given to the patient

to look inside the larynx, trachea, bronchi