Question

In circumstances for which it is impossible to provide such ventilation, what must be used?

1) Airline respirators
2) Hose masks
3) Ventilation systems
4) OSHA-approved masks

Answer 1

In circumstances where ventilation is impossible, airline respirators must be used.

Step-by-step explanation:

In circumstances where providing ventilation is impossible, airline respirators must be used. Airline respirators are a type of personal protective equipment (PPE) that provide clean, breathable air to the wearer. They are commonly used in situations where there is a risk of airborne contaminants or lack of oxygen.