Levoit Core 300S Levoit Core 300S http://www.mbreviews.com/levoit-core-300s-review/ The Levoit Core 300S is a fairly compact air purifier that was designed to cover a smaller area (ideally, not larger than 219 square feet) and there are a couple of interesting additions, one being the QuietKEAP technology that maintains the noise very lo... Three-stage filtration system, The device can run very quiet, The power consumption is fairly low, There is an app, The controls are easy to use It will work great in smaller areas Whether you're in a rental or simply like to travel a lot, a smaller, portable air purifier is going to be better than carrying those larger units around and yes, the Levoit Core 300S does cater to the people that need to quickly clean up a smaller area...