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.
John Francis Daley, who played Dr. Lance Sweets, was killed off in shocking and dramatic fashion this season. The fallout is still coming two weeks after the death actually took place, with an emotional farewell in last weekâs episode.