Question

why do we often sneeze when we inhale a lot of dust laden air​

Answer 1

■HEY DEAR

: When we inhale air containing dust particles, the particles get trapped in the hair present in out nostrils. Sometimes, these particles may pass through the hair and enter the nasal cavity. ... Sneezing expels the foreign particles from the inhaled air and dust-free clean air enters our body.

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Answer 2

Answer: Sneezing expels the foreign particles from the inhaled air, so that only clean air enters our body. Itusually occurs because of the irritation in the upper breathing passage. This irritation happens when we inhalesome unwanted particles and they get trapped in our nasal cavity.