How do you make your body use oxygen more efficiently without exercise?

Although exercise is the best way to do that, there are other ways.

Practice controlled breathing exercises, which are easy to do from the comfort of your home.

One is where you take a few small breaths in and one large breath out. Keep doing this.

Breathing exercises are also relatively easy to find on the internet.

Dropping a dry bar of soap on the ground won’t clean it, by it will pick up germs from the ground so the soap would be dirty