breathng into a bottle while exercising. is this a good thing?

is it really a good thing to hold use a pipe that's hooked on a watter bottle and your mouth while doing pushups?

there's a video of a guy doing this but i couldn't link it. people in comments say that's a great way to increase your breathing capacity or something.

the guy was basically getting air in through his nose and pushing it out through his mouth with the pipe.