Oropharyngeal Airways (Guedel Airways).
Lifts the tongue off the posterior pharyngeal wall to prevent airway obstruction.
Bite block.
Assist oropharyngeal suctioning.
Promotes moulding of the face of a mask for manual ventilation.
Sizes: equal to length in cm.
Colour coded bite portions can aid easy size identification (children – 00, 1, 2; adults – 4, 5).
Sized by measuring from the center of the mouth between the first incisors to the angle of the mandible in an adult.