Iñaki Ochoa de Olza

Iñaki Ochoa de Olza was a Spanish climber. Ochoa de Olza took part in more than thirty separate climbing expeditions in the Himalayas over the course of his career, and was involved in more than 200 expeditions as a guide. He climbed 12 of the world's 14 tallest mountains without using oxygen. Ochoa went on record as saying that he did not believe in using oxygen to climb mountains, claiming "if you use oxygen, you are not an alpinist; you are more of an astronaut or a scuba diver.". He died of pulmonary edema in May 2008 while climbing Annapurna.