A respirator must be inspected before each _______ and during _______.

The correct response emphasizes the importance of respirator inspections to ensure the safety and effectiveness of the device. Inspecting a respirator before each use is crucial because it allows the user to verify that the equipment is functioning properly and is free from any damage or wear that could compromise its performance. This pre-use inspection helps in identifying any issues that may pose risks while working in environments with harmful airborne substances.

Furthermore, inspecting during cleaning also underscores proper maintenance practices. Cleaning is a vital part of respirator care, as it not only ensures hygiene but also prolongs the life of the respirator and maintains its effectiveness. Regular inspection during cleaning helps to identify any potential issues that may have developed during use, ensuring that the respirator remains safe and reliable.

Other options do not align with structured safety practices as effectively. While daily or shift-based inspections may seem practical, they do not account for the immediate need to inspect equipment right before its use and follow with maintenance protocols. Regular inspection routines are critical to ensuring that safety equipment performs as intended, ultimately protecting the health and safety of the user.