Guedel oropharyngeal airways maintain upper airway patency in unconscious patients or those in respiratory distress by preventing obstruction caused by the tongue falling back. Available in a full range of sizes (from size 000 for infants to size 5 for large adults), these airways are an essential component of any resuscitation bag and airway management kit. Made of medical-grade plastic, they are available for single use, in accordance with hygiene requirements in emergency settings.