The inside air pollution levels are often 50 times higher than on a busy street.
Dust in homes primarily contains building materials, household chemicals, smoke,
dead insects, dust mite droppings, and dead skin that can cause allergies, asthma,
and other respiratory problems. Have you ever realized how fresh the air smells
after a rain shower? Didn't you enjoy breathing the air? Rain, dew, fog, and snow
clean the air by trapping airborne particles while washing them to the ground.
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