An economic power spray.
A simple adaptation which can be made to enable a manually operated spray to be used and controlled with low-flow oxygen is described.
D000772:Anesthesia, Local / Q000295:instrumentation*; D000779:Anesthetics, Local / Q000008:administration & dosage*; D006801:Humans; D007830:Larynx; D014132:Trachea
D000779:Anesthetics, Local