Review Content Great for Travel Since I started wearing this when traveling, especially in airport terminals and on the airplanes, I have stopped getting sick every time I go on a trip. I really believe that it does help. I use the larger ones at home and you would not believe what they can take out of the air. Does a Good Job It is great for cleaning the air, especially when there are ill people in the house. I would buy this product again good for travel Best "gadget" I ever purchased! I purchased my first one over 10 years ago. I am a non-smoker, unfortunately, many of my friends and business associates are not... their smoking does not bother me as long as I have my Sharper Image Personal Air Purifier around my neck. Any time I am in a crowd, malls, public transportation, elevators, restaurants - I use it. I wont leave home without it! Sick Free Air Travel! Within the last 12 months I have taken six round-trip air flights - some with connections - so a lot of time in the air for a non-business traveler. Within four days of the first flight of each trip, I came down with a virus every time; even though I took all possible precautions like hand washing, extra vitamin C, nasal spray, etc. So I tried this product as a last resort. Just got back from a trip that involved four flights. I wore the air purifier following the easy instructions carefully, and Im happy to say I didnt get sick! Hooray! Wont travel again without it! The best travel air purifier! This unit has kept me from getting sick for years! I travel on planes a great deal and there always seems to be someone around my seat that is coughing and sneezing. The air quality on planes is usually horrible, so forget about that helping. This travel air purifier sends out negative ions that pushes germs and viruses away. It is powered by 2 small coin cell batteries that last me for several trips. I wouldnt travel without it. I love it My daughter and granddaughter gave this to me as a gift. I cannot say enough about it. I use it at work and other public places. I can breathe again and feel better every day. I love it .I really like the fact that it is attractive and small and that it really does its job. I would recommend it to other asthma and allergy sufferes. It sure made a difference in my life!! Works like a charm Gave clear air on the plane and didnt have to smell everyone. Think I will start using it while driving in LA traffic as well. Slim, attractive, and effective. I recommend personal air purifiers to patients with sensitivity to smoke or fragrances. Compact and sleek I use this for air travel. Happy with it so far. Great Compact Device! Great for any public travel! Best looking one Would love to see it in pink. Buy this product Use this for travel! Great travel companion We got this for travel to 2 countries with high pollution indexes. We have used other personal air purifiers in the past. They dont shield you from all effects of being in a polluted environment, but they lessen the effects and are very good for situations where you are walking around. They are not that effective in high winds or when you are riding in car or train with windows open. We consider these the best lightweight option for keeping your exposure as low as practical without the inconvenience of a full face mask device.