The air inside a home should be completely exchanged about every three hours, according to the American Society of Heating, Refrigeration and Air-conditioning Engineers. Yet some homes are so tightly built that the inside air is exchanged just once every 10 hours, say Honeywell experts. But there's good news. What's more, these units can recover most of the energy used to heat or cool the stale, stuffy air that's being exhausted. So you don't have to worry about your energy dollars going out the window.
Proper ventilation is critically important.
Ask your Perfect Climate contractor about a fresh air ventilation system for your home.