Medicare allows for mask cushion replacement every three (3) months, and a complete mask system replacement every six (6) months. CPAP manufacturers and vendors suggest these replacement schedules as well. In our experience, most mask cushions begin to deteriorate after about six months of use.
Hereâs what you do: 1  Figure out the length that you want your finished sleeve to be. On the outside of the shirt, mark that spot with a line. 2  Using a see-through ruler or regular ruler, mark a line 1 Â½â underneath the first line. Use the ruler to continue that line across the sleeve. 3  Repeat on the other sleeve.  Cut on the second line you drew.
A friend of mine had a sleeve done with tons of detail and it took about 40 hours to complete. Another of my friends has a half-sleeve with minimalist images and very little detail and it took about 10 hours to complete. Chances are, you might have to do it in two settings. Even if you can sit for a long period of time, your artist might want to take a break.