I mean that I love lifting weights but hate to do cardio. Been going to gym +15 years 4-5 times/week. Body fat under 20% and waist circumference 105cm, so I'm not that obese. But of course I could lose 10-15kg. Actually on a diet right now.What does this even mean? Do you go to the gym more than 5x per week or are you being sarcastic and you don't do any exercise? What's your level of fitness in general? Can you hike up a mountain, or a few flights of stairs without getting winded? The high air consumption is a symptom of a BIGGER problem, you are obese according to the charts and that will lead to more serious problems than rapidly draining a tank.
This is a really good idea but realize it's just dealing with the symptoms not the underlying problem.
I walk at least 10000 steps/day and also cycle to work 5 times/week. 25 min/one way.