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.
Pain worse than I've ever had, skin aged and leathery, constipation and can't breathe. I'm in worse shape now than before I had prolia--will NOT take any more. Stomach and digestion problems all the time, can't sleep. 6 months of hell for me. Cholesterol went way up.RA got worse--Dr. said it would help it--a lie!elated Reading: constipation | prolia | sleep. Comment from: 55-64 on Treatment for 6 months - 1 year (Patient) Published: October 30. DO not listen to the other posters here who are most likely making stuff up trying to scare you.