On May 16th 2022, Nimsdai Purja became the first mountaineer to ascend the summits of Everest, Lhotse and Kanchenjunga without supplemental oxygen in the record-breaking timeframe of just 8 days, 23 hours and 10 minutes. He also set a second record of doing the Everest to Lhotse traverse without oxygen in 26 hours. He underto…