Final answer:
For a protective mask like a CPAP device, the bottom straps should be tightened first, followed by the top straps, ensuring comfort and a proper seal for effective treatment.
Step-by-step explanation:
When fitting a protective mask, such as a CPAP device for sleep apnea treatment, the straps should be tightened in the following sequence: first the lower or bottom straps, followed by the top straps. This sequence ensures that the mask is securely and comfortably fitted to the individual's head.
The fitting process usually starts by placing the mask over the nose and mouth. Then, the bottom straps should be adjusted until a snug fit is achieved without causing discomfort. After securing the bottom straps, the top straps are then tightened to stabilize the mask. It is important to make sure that there is a proper seal between the mask and the face to ensure effective treatment and comfort during use.
Following the correct sequence when adjusting the straps is crucial because it facilitates a better seal and can prevent air leaks, which are common issues in CPAP therapy. Proper adjustment also minimizes the chances of discomfort or indentations on the skin caused by excessively tight straps. Users should periodically check and readjust the straps, as needed, to maintain the right fit over time.