What must a respirator user ensure before using their equipment?

A respirator user must ensure that the respirator fits properly and is in good condition because a proper fit is crucial for the respirator to function effectively. A seal between the respirator and the user’s face is necessary to prevent contaminants from entering during inhalation. If the respirator does not fit well, even the best model or highest-quality brand cannot protect the user from harmful airborne substances.

Additionally, the condition of the respirator is essential. Regular inspections for damage or wear and tear, such as cracks or tears in the material, can significantly affect performance. If the respirator is not in good condition, it may not provide the required level of protection, regardless of its design or cost.

The other choices do not prioritize the critical aspects of fit and condition that directly influence the effectiveness of the respirator in protecting the user from hazardous environments. Therefore, the focus on fit and functionality is foundational for ensuring the safety and health of the respirator user.