You can block it. The unit won't heat or cool that room anymore though. The return air does effect supply air temp. And heat pump efficiency. With a 60 degree return air temp, the heat pump is more efficient then with a 70 degree return air temp.
We are simply getting contaminated causing otherwise healthy folks to lose the function of their kidneys and for a senior citizen who is already suffering sarcopenia this can be a death sentence because of the complexities associated with Renal Failure.
Last year, Prison Break star Sarah Wayne Callies got into a contract dispute which ended in her character's untimely death. Fans of the television show were outraged, particularly at the way Dr. Sara Tancredi was killed. Early on in season 3, Lincoln was shocked to find Sara's head in a box, courtesy of The Company. She was killed after Lincoln attempted a daring rescue attempt to free her as well as his son, LJ. Well, Prison Break fans, all is not what it seems.