Is It the Expectation That You Don't Use Oxygen?

Is there an expectation that you don't use oxygen? Then the absolutethe f k t are done without oxygen. Using oxygen is not doing the real altitude of the mond and tethe toughness of the month. You have to be absolutely away from oxygen ol the expedition. Otherwise it doesn't count as no oxygen, oxygen oxygen expedition. But on the end, it's its cheating. If you want it to count, you got to do it without that's incredible.