What are the opposite words for OBeirnes experiments tube?

The term "O'Beirne's experiments tube" doesn't have a direct antonym as it is a specific tool. However, there are antonyms for its individual components. An experiment involves testing a hypothesis, while a tube is a cylindrical container, so antonyms might be conjecture and box. O'Beirne's experiments tube is a device used for testing the respiratory capacity of animals, so antonyms might include non-invasive and non-intrusive methods of testing, such as using a pulse oximeter or performing a simple physical exam. However, it's important to note that antonyms describe words with opposite meanings, not necessarily opposing tools or methods for testing.

Other antonyms