I’ve got a household with several kids and several animals. Needless to say we have a lot floating around in the air. This air purifier has been excellent right out of the box. Setup was incredibly 
easy and the user interface is easy to understand. I put mine on eco mode/auto mode and haven’t touched it sense. The only thing I’ve done is check the filter, more out of curiosity than anything else. I was shocked to see the amount of animal hair this has sucked up. In the beginning I wasn’t sure how much of the house this purifier was using but I was a believer after cooking dinner in my kitchen that is on the other side of the house. Shortly after I put bacon in the oven I could hear the purifier kick on and start cleaning the air. Overall I’m very happy with this purifier and how well it works.