There's a bunch of air purifiers on Amazon, but this one caught my eye because of its ability to discern the particulates in the air and adjust accordingly. It's also easy to assemble and does a great job at cleaning up the air.I bought this for kitchen fumes and to help reduce the particulates that are being caught in the HVAC filter (we have 3 animals in a small home). The first one actually came without the power adapter. I contacted Amazon and they sent me a replacement (which did come with everything). Inside, you should find your included filter, power adapter, and manual. Assembly is easy. Just take the filter out of the plastic wrap and push it into the device from the bottom. After turning it like a lock/key, the filter is locked into place and the purifier is ready to use.While this purifier comes with a remote and many other features including sleep mode, timer, and child lock, the most useful is the automatic fan adjustment. The screen shows the current particles in the air and the purifier automatically adjusts based off of that. I was able to verify that this feature does work well, especially when cooking. The fumes from the kitchen are quickly detected and the purifier ramps up to accommodate for that. This helps quickly eliminate the odors from the house. Once there are fewer particles, the purifier adjusts down and you'll end up with a purifier that you can barely hear.It is very easy to move this purifier from room to room. The purifier has latches on the side that make carrying it easy. In addition to that, it's also not very heavy. The power adapter is a bit bulky though. However, it's shaped in a way that it won't cover any of your other outlets.Pricing on this product fluctuates. I bought this at $124 during a lightning deal. But at the time of writing this, there's a coupon that reduces the price to $109. According to my price tracker, this is the cheapest it has ever been. But at $124, I do not think it's a bad deal. I would not recommend buying at the full price of $169. There are many other options out there that are cheaper.Overall, this purifier does a great job at keeping my house smelling odor free. As long as you buy this when discounted, I think this is one of the better purifiers you can get on Amazon.