Question Detail
Question
The 'iron lung' was an early artificial respirator invented in 1929 primarily for what purpose?
Correct Answer
Option B is the correct answer.
Detailed Explanation
The document mentions: '1929-Artifical Respirator: The “iron lung” was invented as a mechanical device for breathing assistance. It is simulated breathing via pressure changes in a tank.'
Hint
The name 'iron lung' implies a device for breathing.