Question

Why do we often sneeze when we inhale a lot of dust-laden air?

Answer 1

• Sneezing expels the foreign particles from the inhaled air, so that only clean air enters our body.
• It usually occurs because of the irritation in the upper breathing passage.
• This irritation happens when we inhale some unwanted particles and they get trapped in our nasal cavity.
• Smoke, dust, pollen, etc. are some of the unwanted particles that may cause sneezing.