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.
Image copyright Getty Images Image caption Judge Rosemarie Aquilina The judge who has sentenced disgraced USA gymnastics team doctor Larry Nassar has given a voice to over 150 women who chose to confront their abuser face-to-face. I just signed your death warrant, Judge Rosemarie Aquilina said as she told him he would serve up to 175 years. She listened patiently as survivors shared their stories of abuse during the multi-day-long sentencing. At times acting as more of a therapist than a judge, the 59-year-old did not hide her empathy for the women. Leave your pain here, she said.