Once the breathing hose is in your mouth, what is the next step?

After placing the breathing hose in your mouth, the appropriate next step is to exhale. This action serves several purposes. First, exhaling helps to clear any residual air or contaminants from your lungs that could interfere with the effectiveness of the breathing apparatus. Second, it allows for a proper seal and establishes the necessary pressure for the hose to function effectively, ensuring a continuous supply of air. This process is crucial for maintaining safety and control in environments where breathing might be compromised.

Inhalation should occur after this step, as the first priority is to ensure that the breathing apparatus is properly set up and functioning before drawing in air. Sealing the lips tightly is important, but it comes after ensuring optimal exhalation. Signaling for help is a response if there are concerns regarding the breath supply, but the immediate action after securing the breathing hose should focus on utilizing the equipment.