What's the difference between negative ions and ozone?

A lot! Negative ions are molecules of oxygen (O2) in the air with an extra electron. Ozone is O3, a molecule of oxygen consisting of three oxygen atoms instead of the normal two. Negative ions primarily reduce particulates in the air such as dust and pollen, but they aren't as effective as ozone for eliminating odors. Ozone does not reduce the particulates in the air, but it is more effective at eliminating odors, even very strong odors. Too much ozone is bad for you. Having said that, there are machines available that intentionally generate ozone (we can supply them if you need one), but if the level of ozone is properly adjusted, the ozone and the odors in the air cancel each other out and little if any ozone remains.  more

A lot! Negative ions are molecules of oxygen (O2) in the air with an extra electron. Ozone is O3, a molecule of oxygen consisting of three oxygen atoms instead of the normal two. Negative ions primarily reduce particulates (such as dust, pollen, mold spores, bacteria, etc.) in the air; but they usually aren't quite as effective as ozone for eliminating odors. Ozone does not reduce the particulates in the air, but it is effective at eliminating odors, even very strong odors. Too much ozone is bad for you. Having said that, there are machines available that intentionally generate ozone (we can supply them if you need one), but if the level of ozone is properly adjusted, the ozone and the odors in the air cancel each other out and little if any ozone remains. Note that there are some machines sold as "negative ion generators", that are actually ozone generators. We do NOT do that: all of our ionizers are genuine negative ion generators.  more