Abstract: Maintaining safe cabin pressure is essential for commercial aircraft operating at high altitudes, as reduced atmospheric pressure can lead to hypoxia, posing significant risks to passenger safety and comfort. Hypoxia, resulting from inadequate oxygen delivery to tissues, can cause impaired cognitive function, dizziness, loss of consciousness, and in extreme cases, fatal outcomes. Thus, aircraft utilize sophisticated cabin altitude monitoring systems designed to detect and warn flight crews of potentially hazardous pressure drops, ensuring passenger and crew well-being.