I love this, and I love the thought that you could Put some scented oil in it for the air purifier I had to stop using it because it says you need an iodized salt for it. I thought maybe you could run it without it but what I’m reading you can’t so I don’t wanna ruin it, but from what I got to use for a couple hours I did, you could tell the difference you really could fresher cleaner air and it’s in a one floor home that’s a very small Cape Cod three bedroom so with a large room I would say it’s covering my whole living room and hallway towards the bedrooms