<prompt> Lary ngoscopes are sterilized by -GlutaraldehydeFormalinBetadineBoiling  <response>: Ans. is a i.e., Glutaraldehyde o Laryngoscope should be cleaned before and after use with spirit.o Disinfection can be done once a day by removing the bulb and immersing the blade in 2 cidex glutaraldehyde for 10 minutes.o They should be sterilized once a week by immersing in cidex for 10 hours or by autoclaving. 