An Ionizing or Negative Ion Air Cleaner Create Ozone

An ionizing or Negative Ion air cleaner create ozone

Where ozone is produced

Unlike HEPA air cleaners, shown at far right, ionizing air cleaners impart an electrical charge to the air, creating charged molecules known as ions, which are supposed to cling to airborne particles. Ionizing models that are also electrostatic precipitators, such as the kind we focused on for this report, add an oppositely charged collection plate designed to attract the particles. Ozone is produced as a byproduct when high voltage near the charging wires converts oxygen to ozone, which then exits the machine and flows into the room air.


Copyright 2005 Consumers Union of U.S., Inc. Yonkers, NY 10703-1057, a nonprofit organization.

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