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That vornado is the biggest joke ever. It is a plastic trash can with a fan and a really flimsy proprietary filter (they do this so you have to buy replacement filters from them. Just because the filters get dirty does not mean it is cleaning your air effectively. If you push dirty air through a paper towel it will eventually go black as well. The goal of air purification is so that almost all of the particles are removed from the air in the room whenever the unit is turned on. The vornado only removes down to 1 micron because it does not even have a hepa filter. The Honeywells and other cheap units remove down to .03 micron. 90% of the air particles are smaller than .03 micron so in reality you are not doing much to help youself. Some people will allergies have their symptoms relieved by these cheap units because it is just enough to allow them to sleep and function normally. I use air purifiers so my 6 month old daughter does not have to breathe this putrid Los Angeles air. People wonder how they get cancer.....
I do love the Vornado air circulators though. I have a small Vornado fan in each room so that my air purifier does not have to be turned up nearly as much to move the air around. Plus they feel really great in the summer and my air conditioning can stay off most of the time.
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