Anesthesia vaporizer

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PURPOSE : A vaporizer for anesthesia is provided to maintain the concentration of anesthetic without readjustment of the concentration of anesthetic. CONSTITUTION : A vaporizer for anesthesia comprises a gas supply inlet(10) supplying oxygen and nitrous oxide to a vaporizer, a chamber(20) in which a temperature sensor is accommodated, a valve seat(30) which is combined with the top of the chamber, and a concentration control valve(40) which controls the concentration of anesthetic. The material of the valve seat and concentration control valve is alumina.