Which of the following conditions represents a particular advantage of using a positive pressure type self- contained breathing apparatus in an atmosphere that is immediately dangerous to life or health?

Question

Accepted Answer

The positive pressure in the facepiece prevents contaminated air from entering the facepiece.

Answer

The average operating time for most air cylinders is over an hour.

Answer

The equipment used is lightweight and easy to wear by reducing physical strain on the wearer.

Answer

The equipment is compact and the wearer can work in confined spaces without difficulty.

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