Particles must be small to penetrate deep into human lungs, where they can start a lethal infection.
Of course, just as with the human lungs, air that is pulled in will eventually have to be exhausted.
They blew longer and louder than Blade thought human lungs could manage.
A heavy smell made the air hardly fit for human lungs.
And it would not survive in human lungs, but just the thought -.
In an average human lung, there are 480 million alveoli.
The human lungs are the organs of respiration in humans.
He gave his human lungs a deep breath of it and listened for Siona's approach.
The human left lung, unlike the right, contains no middle lobe.
Sliding down the slope from clean fuels isn't just a threat to human lungs.