Coral problems

[MichaelB]

"ERV stands for Energy Recovery Ventilator, and is regularly referred to as an air exchanger and an ERV ventilation system. They are designed to be connected into the HVAC system in your home, office, or any other building. They pull fresh, clean air into the building and take out stale/unclean air."

Thanks, I only have a window ac unit, and wife runs a air pur. 24/7