Find out what you need to know about ozone and air purifiers. Then compare Blueair 501 ozone test results with government air quality standards and learn why Blueair's systems are safe.

What is ozone?

A chemist would answer that ozone is a single molecule composed of three atoms of oxygen, the third of which is unstable (or volatile) and therefore tends to separate and bond with other molecules. An environmental scientist might tell you that ozone is the main component of urban air pollution, or that ozone high in the atmosphere protects our planet from harmful UV rays from the sun. Your health care provider would certainly state that high indoor ozone levels can irritate sensitive lungs, and even affect healthy people at high concentrations.

Fact: The U.S. government's most stringent ozone safety threshold is .05 ppm (parts per million)

Because of ozone's role in air pollution-related health problems, its health effects have been studied extensively. Government agencies have established various safety thresholds for ozone exposure. The National Ambient Air Quality Standard, established by the U.S. Environmental Protection Agency (EPA) is .08 ppm for outdoor ozone. National Institute of Occupational Safety and Health recommendations and Occupational Safety and Health Administration regulations both establish ozone levels of 0.10 ppm as the safety threshold for workers on the job. The most stringent standard, those of the U.S. Food and Drug Administration for indoor medical devices, specifies that ozone output be no more than 0.05 ppm.

Fact: The Blueair 501 tests at .003 ppm of ozone

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