If the air you breathe reached your lungs without being filtered, you wouldn’t live very long. Your lungs would quickly become clogged with dust because with every breath you take, you breathe dust. An that dust is also laden with toxic materials.
To prevent this, you possess a marvelous filtering system in which tears, mucus and tiny hairs play a part. Nostrils, sinuses, tonsils, bronchi are a few of the filtering devices that comprise this system.
AMAZING ISN’T IT?
20/20 VISION — SEEING YOUR POSSIBILITIES!