Ready to turn on out of the box! Easy set up and control system! I like the design! It fits almost any room in my house and it’s lightweight so it’s easy to move if I want. The filter is big and seems to be industrial like. I checked replacements and looks to be affordable so another reason why I am excited about this one. Plus bissell does a lot with helping save pets and I have other bissell products that I like so happy to have another one!