The air where I live, is not as clean as I would like it. I like where I live and haven't had a problem with it. But the air really isn't the best. Some days, you step outside and get a big whiff of something that smells more like small cigars being lit than a clean, fresh smell. That's why I love it when it rains or snows because it really clears the air up. On those days, we can go outside and take a wonderful big whiff of fresh air! I love those days! I've noticed my kids love those days too. They really notice when the air smells bad and they don't like it any more than my husband and I do. I think clean air is important though, so as soon as we're done with school, we'll probably look into moving somewhere else. We'll see.