I received my first air purifier - the Cool Gen1 and started using it right away.  It was very easy to get started. The purifier was fully assembled when taken out of the box.  You will need to look at the instructions online.  After running it for a couple of hours on setting of 8, the air smelled fresher and cooler.  I was glad it worked! However, running it on auto will take longer to feel a difference. It doesn’t take up too much space, light weight and runs quietly.

I’m very satisfied with this product as I am will other products I own.