<prompt> The proseal LMA has advantage over normal LMAIn being more easy to inseComparable to endotracheal tube in preventing aspirationCan be inseed in concious patient.Can be used for pulmonary toileting  <response>: Advantage of proseal LMA over classical LMA is that it is comparable to ETT in preventing aspiration. The PLMA shows several modifications from the cLMA: The drain tube runs through the device from the tip to the proximal end. When the PLMA is correctly positioned, the tip of the device forms a high-pressure seal with the oesophageal inlet and the drain tube runs in continuity with the oesophageal lumen . oesophageal drain tube posterior inflatable cuff reinforced airway tube integral bite block introducer this reduces the risk of aspiration and hence may be suitable in non-supine positions e.g., lateral, prone, in laparoscopic surgery e.g., cholecystectomy, gynecological surgery, and in patients who are obese. 