Review Content 5 STARS. Highly recommend! One of my co-workers brought this to work, and the technology behind this product is just phenomenal. I went on and purchased it and its been on for a month now and it really does a great job. Plus, I saw no change in monthly electricity bill and got to save the money I used to spend on filters. This is probably the smallest portable, but quiet and very effective air purifier Ive ever used. Im planning to purchase their desk model also. Hands down the best! Amazing Results. Our kids used to wake up coughing everyday.. But just by putting this air purifier in their room changed their mornings COMPLETELY! Now we realize how important home air quality is. We are so glad we bought this product. Highly recommended to anyone suffering from sneezing and coughing! Another Great Sharper Image Product My office was being remodeled and there was dust everywhere. This amazing little purifier tackled the finest particles and works flawlessly! Bought a second unit for my boss who was suffering from allergies and within just a few days he was also feeling much better. He laughed and said he didnt think it would work but attributes his good health these days to what he calls an amazing little gadget that takes no room and is super quiet! We love it!! effective bur noisy and bright I had wanted to use this in the bedroom, but the light was far too bright and the humming sound a bit annoying. So, it is now sitting in a hallway, where it is effectively doing its job. It is a little tricky to open the case, but once you get the hang of it, it is doable. In general, I am pleased with it now. Little Gismo I bought this for my office. Perfect! I always had a hard time breathing in the afternoon in my office. Not sure what the problem is (probably uncleaned vent, ugh....), but with this little gismo, I can breath normally, and not even one sneeze! (My assistant told me that I always sneezed at least once a day in the office before this.) I am planning to bring this for my trips, too. Great little unit The units works very well and have it on my night stand. Im going to get another one I like it so well. Awesome little guy! Perfect for our office bathroom. Takes up very little room, and does a great job on handling the war zone that it can sometimes be. Very happy with this product. Great Portable Air Sanitizer I love the compact and potable size. I wish this product can use USB plugin I want another one! So far Im very impressed with this little air purifier. Got it for the kids bathroom. Works great! I plan to buy another one for the 2nd bathroom. Plugs in, so no need to worry about batteries.