Its unique cool flow valve can efficiently discharge hot and damp exhaled breath from inside the respirator, allowing easier breathing for users.

This is called a cycle valve tube.

And this is how you make a valve.

Is he breathing?

Tom's not breathing.

Breathing was difficult.

This is actually a heart valve, which we engineered.

Does the color of the valve matter? What matters here?

It was like breathing.

Breathing has become difficult.

Now that's a left ventricle pushing blood up through the aortic valve you can see two of the leaflets of the aortic valve working there up into the ascending aorta.

It's as old as breathing.

And I think they re breathing.

You are now breathing manually.

And the way you engineer this heart valve is the same strategy.

This is actually a heart valve that we've engineered, and you can see here, we have the structure of the heart valve and we've seeded that with cells, and then we exercise it.

So you are currently breathing formaldehyde.

He does not seem to be breathing.

You stop breathing, and then you're dead.

I swear by the runners breathing pantingly,

I swear by the runners breathing pantingly,

It has a funny trilobal shape at the bottom, which contains the aortic valve.

They were breathing those words with fractal lungs.

So that's the breathing loop in a nutshell.

BJ We had a big challenge with breathing.

He was underneath, not breathing for 45 minutes.

Then I actually started thinking about liquid breathing.

AK You want to say something about the breathing?

And grasshoppers have a different kind of breathing system.

I shot the horse because it had trouble breathing.

The most fundamental of these is called the breathing loop.

Out of 52 minutes you're only breathing for eight minutes.

This is in China. This girl needed a breathing apparatus.

I was holding his hand as he stopped breathing and it wasn't until he'd actually stopped breathing and he was dead that I finally acknowledged he wasn't invincible, he said.

He told her Joshua isn't breathing properly, come home right away.

It'll help my breathing. It'll do something for my pulse, maybe.

And, again, civil societies breathing down the neck of the establishment.

And this breathing apparatus now saved the life, and she's very welcome.

Even trips to the dentist require that you take antibiotics, in case you get an internal infection on the valve.

People bring their own cooker, he attaches a valve and a steam pipe, and now he gives you espresso coffee.

Actually, I had this taxi driver telling me, Listen, I am breathing freedom.

It's just pure mechanics, allowing you to cycle air through this breathing loop.

We take the scaffold, we seed it with cells, and you can now see here, the valve leaflets opening and closing.

And, the other component on a breathing loop is the carbon dioxide absorbent canister.

Last thing, breathing. A problem a lot of us have, certainly, when you're swimming.