I am a huge fan of the Shark brand as an owner of multiple products of theirs I was excited to try this air purifier. It has been impressive as expected! It comes in the box ready to go you just make sure to take the filter packaging off before turning it on. We pet sit as a side job so the hair and dander can be a lot to keep up with. The shark air purifier has done a tremendous job keeping that under control. My husbands asthma has been much more under control since getting this purifier as well. I love the timer function on it so that I don’t constantly have to turn it on and off and the fact that it’s a quiet unit. We can’t wait to get another for our upstairs space!