In an air-supplying respirator, what is the weight capacity for a full-facepiece using pressure-demand (positive pressure)?

In the context of air-supplying respirators, the weight capacity of a full-facepiece using pressure-demand (positive pressure) designates the maximum allowable weight that the respirator can safely accommodate during use. The emphasis on positive pressure is crucial, as it means the respirator is designed to deliver air to the wearer under pressure, ensuring a continuous flow that prevents contaminants from entering the mask.

A weight capacity of 10,000 indicates that the respirator can withstand significant external forces or weight without compromising its structural integrity. This high capacity is essential in occupational settings where workers might need to operate in hazardous environments or under physically demanding conditions. It allows the respirator not only to provide adequate respiratory protection but also to ensure the comfort and safety of the user under strenuous circumstances.

In comparison, the other options reflect much lower weight capacities that would not be sufficient for full-facepieces in many industrial applications. Respirators often encounter various physical stresses and must be robust enough to maintain both functionality and safety for the user. Thus, understanding the design choice of pressure-demand and its implications on weight capacity is vital for proper respirator selection and compliance with safety regulations.