What should a worker do before wearing a respirator?

Before wearing a respirator, performing a user seal check is crucial to ensure an effective and secure fit. This check helps to confirm that the respirator forms a proper seal around the face, which is essential for preventing the inhalation of harmful airborne contaminants. A good seal minimizes the risk of leakage around the edges, which can occur if the respirator does not fit the individual's face shape properly.

By conducting a user seal check, a worker can verify that the respirator is functioning as intended and is providing the necessary protection. This step is vital in maintaining workplace safety, especially in environments where exposure to hazardous materials, such as asbestos, is a concern.

Inspecting for visible damage, while important, does not ensure that the respirator will perform adequately once worn. Testing for air pressure is not a standard procedure associated with respirator use, and applying a cleaning solution is not relevant to the process of preparing to wear a respirator. Thus, performing a user seal check is the most critical action to take before putting on a respirator.