Most people have no idea that they arent breathing in only oxygen when
they inhale. Outside, they may be inhaling volatile organic compounds
from car exhausts, benzene, solvents, wood smoke, dust particles, soot
and ozone. Inside, they may be inhaling formaldehyde, radon, radiation,
or asbestos fibres. This book is important reading for everybody who
wants to know how air quality relates to health and how it can be
improved in their personal environments.