We got our first flex air purifier when the wildfires started in California this year. The smoke was the worst it's ever been and we were struggling, even inside our home. We ordered the heavy smoke filter with it and it made such a huge difference. We liked it so much, we bought a 2nd one. It's easy to move the purifier from room to room, but now we keep one in our home office and one in our bedroom. It is slim and fits into our décor perfectly. The panel lights up for easy reading, but with one touch, the lights go off to keep the bedroom dark at night. The purifier is quiet and efficient too!