One Example of Personal Protective Equipment (PPE)is the N95 Respiratory

One example of personal protective equipment (PPE) is the N95 respiratory mask.When is use of this respirator indicated?

A) To limit the spread of large-sized droplet secretions.
B) When working in the OR during smoke-generating procedures.
C) To protect the perioperative nurse from splashed of blood or other fluids.
D) Only if the OR does not have an exhaust ventilation system.