Live without breathing

Have we evolved this far...?
Or are there awful side effects?
Like itching and scratching or something

This one says it kept the rabbit's alive for 15 mins... http://www.dailymail.co.uk/news/article-2598208/A-breath-fresh-air-Oxygen-micro-particle-lets-live-without-breathing.html
Also other sources confirm that this is a temporary thing. Like you could swim underwater for a bit, cool.

Damn, science, calm down.

This will be awesome in the ER.

As a competitive swimmer, I'm excited

This can cure asthma

they should inject people with this when they are choking

I can see the elixir bottles now. Skyrim style.