She is concerned that this 3400 sqft house isn’t going to have enough oxygen to sustain the three of us. Keeping the doors/windows closed with AC on is going to give us recycled air, which is very bad for you. The only time she’ll ever do that is if she feels very hot. Same thing when driving. Even if you turn on AC, she’ll have her window cracked open to let in that sweet hot air to feel that fresh air. Doesn’t matter you press the button to let in outside air. She doesn’t believe in them. She only believes in fresh air straight out the window.