I'm not saying that the moon landing wasn't fake.

However you do have to realize that breathing compressed air underwater you breathe twice as much air every 33 ft you go down.

At 66 ft it's four times the amount of air that you would have at the surface.

At 99 ft it's 8 times the amount of air you would breathe at the surface.

..

Since space is a vacuum they would only have to compress the air in the suit enough to make it the same as the atmosphere here on Earth.

I was a scuba diver years ago, these are things you absolutely have to know when you breathe compressed air.