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

 The air around us has a various types of unwanted particles, such as amoke, dust, pollens etc. When we inhale, the particles get trapped in the hair present in our nasal cavity. Howeever, sometimes these particles may get pass the hair in the nasal cavity. Then they irritate the lining of the cavity, as a result of which we sneeze. Sneezeing expels these foreign particles from the inhaled air and a dust - free, clean air enters our body.

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 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.

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the air around us has various types of unwanted particles such as dust,smoke,pollens etc.When we inhale air,these particles may get trapped in the hair present in our nasal cavity.However sometimes these particles may get past the hair present in our nasal cavity.Then they irritate the lining of the cavity as a result of which we sneeze.Sneezing expels these foreign particles from the inhaled air and a dust-free clean air enters our body.

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the air around us has various types of unwanted particles such as dust,smoke,pollens etc.When we inhale air,these particles may get trapped in the hair present in our nasal cavity.However sometimes these particles may get past the hair present in our nasal cavity.Then they irritate the lining of the cavity as a result of which we sneeze.Sneezing expels these foreign particles from the inhaled air and a dust-free clean air enters our body.

and sometimes,

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.

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