I work from home and after 8 hours of working in the home office, the room starts to get stuffy. I've started running this tabletop air filter and I love it. The room feels so fresh - it feels like I left the window open, but without the draft. As an added bonus, my house plants love it - their leaves perked up! When you first open the package, make sure you look INSIDE the body of the device for the setup instructions + plug. Once you figure that out, you can turn it on right away and start breathing it fresh air.