Question

where is air filtered in the respiratory system​

Answer 1

⇒The air is warmed and humidified. Tiny hairs called cilia

⇒The nasal passageways and other parts of the respiratory tract, filtering out dust and other particles that enter the nose through the breathed air.

Answer 2

Answer:

Alveoli

Explanation:

Alveoli are small sack like structures present inside the lungs and are surrounded by squamous epithelium tissue. In these sack like structures, the carbon dioxide from the blood is seperated and the oxygen is dissolved in the blood. Later the carbon dioxide is expelled out during exhalation.