I've heard from a common friend who has ducted an airpurification system installed all throughout her house. Since I can't talk to the person who had it, might as well ask it here. Is it expensive having that than a stand alone unit? is it advisable and more energy efficient?

I read your blog and it's interesting, I also read you recently installed it in your own home.

What are your initial thoughts?

In our society, there are too many items that pollute the air. So I moved out of town with my family. I'm still worried about my kids. I am convinced that clean air is a prolong life. That's why I want my children to breathe clean air.