With the window fan pushing the virus out, what about anyone outside in the yard?
We have plans for an isolation room but I’ve had concerns that opening the ground floor isolation room windows will just blow it to the yard and back into the house. Pets will bring it in. Kids will bring it in. Neighbors will bring it into their houses.
No, windows units recirculate indoor air. Intake is through the filter and then comes out vent. That air blowing outside is outside air that blows through the condenser. The air blowing indoors is blown across the evaporator. Same with central AC. There might be some high dollar systems that bring in outside air. I know some automobiles have fresh/recirculate option. Definitely not window units though. I’m EPA certified for automotive AC but not residential/commercial.