Which of the following is NOT part of respirator maintenance?

Using only commercial cleaners is not considered a specific part of respirator maintenance, as this focus on the type of cleaning product does not capture the broader responsibilities involved in maintaining a respirator's effectiveness and safety. Proper maintenance includes regularly inspecting the respirator for any signs of wear or damage to ensure that it functions correctly and provides adequate protection. Timely preparation refers to ensuring that the respirator is ready for use when needed, including checking seals and fit. Additionally, proper storage prevents damage and contamination, ensuring the respirator remains in good condition until required. The emphasis on the nature of cleaning agents may lead users to overlook essential maintenance tasks that are critical for the respirator's overall performance and longevity.