The central premise of this book is based upon the findings of medical research on the National Institute of Health website which states "10%-20% of the people who die of lung cancer every year never smoked," and the conclusion of an abundance of medical research sited in this book is air pollution is the probable cause of those deaths. The author provides a detailed analysis of air pollution, followed by a detailed discussion on air purifiers, their recommended use and what is needed in an air purifying technology to properly treat COPD and other respiratory illnesses.
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