I received this about 2 weeks ago. This is very easy to use and it does a great job at cleaning the air. I placed it in my living room bc the air in there was always just so blah. When I turned this thing on and it started cleaning the air, I immediately could tell a difference in how the air felt. It was so crisp and just so airy. If there was any smell lingering, it took care of it. I highly recommend!