Some people think they're great, others don't. See Bob Blaylock's answer to this question. . .Consumer Reports is fairly reliable. You should buy an air purifier that meets your specific needs: -Price -How much square footage it covers -Cost of replacement filters -Consumer ratings To name a few things. There is a good comparison tool located here: http://www.epinions.com/Air_Purifiers

The answer is no Ionic purifiers take particles out of the air at about the same rate gravidy goes. ( from several articles by Consumers Report). If ozone cleared the air , then places with very ..very high levels of ozone would have clean air . These would include ,metal fabrication houses, WW2 ships,..etc...nope While it is true that high-voltage sources attract dust , the effect just will not clean a room. But Hey, what do I know

It is well worth reading this answer entirely, despite someone's vendetta to downgrade my ratings, and their attempt to dissuade people from restoring a natural healthy balance to their body or lives. Personally I have had great success in using some versions of the ionic air purification systems. Understandably, there are mixed feelings on this subject and I still have some pending research to do regarding some of the effects upon nitrogen and other aspects of the air. (e.g. electrical generators, nitrogen bonds and forms, etc.) Here is my take on some versions of ionic air purifiers which have worked for me and I will put it in laymen terms for an easier grasp: The air becomes charged by an ionic purifier and very "active" in attaching to particles which are floating around. These particles which are floating around are pollutants...such as dust, mold, pollen, bacteria, chemicals (from solvents to household cleaning solutions to paints to fumes), smoke, odors, etc. Inside the home or warehouse, these particles are now heavier and they tend to fall, or they may be attracted towards something with an opposite type charge. Indoors there are not factors such as the sun or the wind or the baking heat which can make the particles more volatile and keep them stirred up. Regardless of whether they are inside or outside, pollutants floating in the air are not healthy to breath. The charged air itself is not healthy to breath either (ozone or the charged nitrogen). However, indoors one can often control the settings and output and placement. The charged air (ozone) is relatively unstable and will dissipate very quickly in the home. [In the summer outside, the heat creates ozone carried pollutants. Ozone will dissipate normally, but the heat keeps it actively united with outdoor toxins. Ha!...you could compare it to warming a big tray of paint thinner which will continue to "float fumes around in the air" as long as it stays heated. Really, it is the pollutants which are the scare when you hear about "ozone alert days". A hundred years ago there was still some heat created ozone, but not the harmful toxins united with it.] So, here is how I handle the indoor "ozone" or charged particles. I turn my fan type ionizer on full throttle every once in awhile and I go run errands or go to work. I turn it off when I return and the house is clean. It smells fresh. Gone are all those allergens or whatever floating around in the air. At a dusty cardboard and paper product warehouse I once had, employees would sometimes have sinus problems or sore throats or watery eyes, etc. (A lot of mold and mites come with shipped cardboard boxes or paper goods which have been warehoused for awhile.) I resolved the problem by doing the ionizer routine overnight. A decade ago, I bought a couple of these $20 cheap "ionizers" which I still use out in the garage where the trash is. They work to keep down the odors. It is funny...these old thing would throw of this static electrical spark type charge into the air while the base would attract the pollutants. I made the mistake of setting one of these on a file cabinet in a smokers room...and that file cabinet started to get a "nicotine stain" painted over the entire surface. As far as telling you what to look for when buying an ionic air purifier, I personally prefer something with a fan. There are many different types out there and when you search some sites, you will find out that there are a lot of differences in quality with some. Some very interesting information. Ideally, your air conditioning service could hook up a great purification system to your ventilation system. Many newer, more expensive homes have these units built into the A/C system. The Carrier Repairman told me about some of the newer versions out now which bring in fresh air and have the ultraviolet lights, etc....they really sound great. Most homes and offices have very, very polluted air, especially with chemical cleansers and stale air. Ozone What Is It? Ozone, with the chemical formula 03, is comprised of three atoms of oxygen, it is one of nature's basic elements. Ozone is produced in nature when the ultraviolet rays of the sun strike oxygen molecules high (about 90,000 feet) above the earth in the atmosphere. Nature also produces ozone each time lightening flashes. The sweet smell after a thunderstorm is ozone. Ozone was first discovered in the 1840's. By combining ultraviolet rays from the sun with the air that we breath ozone is produced. In 1906, in the city of France the first municipal water purification plant was built which utilized ozone. Today there are over 2,000 plants worldwide using ozone to purify drinking water. Recently, Los Angeles built the largest ozone plant in the world for purification of the city's drinking water supply. This system was chosen over chlorine system because of ozone extraordinary ability to effectively purify water without side effects. Ozone is produced naturally by the sun's ultraviolet light. Ozone is a very powerful oxidizer that can be used safely to purify water. Its alternative, chlorine, has been documented to cause illness, irritation of the eyes and nose, swimmers ear, etc. Chlorine is also dangerous to transport and to store. Ozone is clearly superior to traditional chemical treatment. Just as nature uses ozone to protect life on earth, we can use ozone to protect ourselves from microorganisms in water and air. At the same time, we enjoy soft, sparkling clean water naturally, and clean fresh air without perfume cover-up. AIR Ozone kills microscopic organisms, bacteria, viruses and smoke in the air - eliminating their odors. It is inexpensive and costs just pennies a day. It leaves air clean without a perfume cover-up. Even stale air can be quickly revitalized. Ozone makes any area smell clean and fresh like springtime in the country. WATER Ozone kills bacteria, molds, algae and viruses found in spas, hot tubs, pools, and tanks. Ozone is non-hazardous to the eyes, skin, hair, and clothes. It destroys organic matter that clouds and stains surfaces. It maintains a neutral pH that does not affect the acid/alkaline balance of water. Makes water sparkling clean and crystal clear. Ozone works incredibly fast!

Ignoring the debate swirling around the value of "ionic" devices, it is far better to install an electrostatic air cleaner on your furnace and use the furnace fan to circulate the air in your house through the filter. You don't need to turn the heat or A/C on, just the fan to keep the air in circulation. This will help eliminate most particles from the air, a benefit to those with allergies. Just remember to clean the filter frequently. Vastly suprior to those room-sized air cleaners / purifiers on the market.

I recommend HEPA air purifiers. And you can buy from B&Y air purifier at www.byinternational.com or www.purifieron.com

i have one by Holmes, i was just checking the website for the right size filter for mine. anyway, the website recommended not running the ionizer at all times. it also stated that if your filter was dirty the ions would be re released into the air and would stick to items around your house which could be difficult to clean --just telling you what it said. also, people i know who have severe allergies highly praise those with hepa filters

My ionic breeze collects all of the dust from the air, I don't have to dust my room anymore just clean off the fins. It has an ozone[guard] blocking feature I don't have any scientific reports to back up that the new guard stops all ozone but the "ozone" smell is no longer there as in previous models. It does get rid of the smell of weed from my room well.

you should buy an air purifier that generates Zero ozone. Ex. HEPA air purifier. You can explore these information at Learning Center of http://www.airgle.com