This air purifier is very effective with a very nice design.   It is plug and play right out of the box.  It has three different speeds that are easy to adjust with a quick press on the top of the unit.     Even at the highest speed, it is not overly loud.    I also really like the look of the purifier with its outside, washable fabric pre-filter that is a nice gray color that looks great with my decor.   I also like that the unit will notify you when it is time to change the main internal filter with a light indicator.  I highly recommend this for any home.