Breathing
Yes, air passing through your nose is moistened by mucous membranes that line the nasal cavity. This helps to keep the airways moist and prevent them from becoming dried out.
passing through nose and mouth
Nose hair filters air that is passing through the nose, for example, dust particles in the air.
It filters, humidifies and warms passing air
Both food and air travel through the digestive system. Food travels through the digestive system starting from the mouth, passing through the esophagus and stomach, and finally to the small and large intestines for absorption. Air travels through the respiratory system starting from the nose or mouth, passing through the trachea and bronchial tubes, and finally reaching the lungs for oxygen exchange.
The respiratory system. The air goes in through the nose, passing through the nasal cavity (in which it is "cleaned"), goes down thus passing through the epiglottis, passes through the trachea, splits in the bronchus, splits more in the bronchioles and finally goes into the alveoli (inside the lungs).
It is filtered through the nose hairs.
When you hum you blow out air to make the noise, but if you plug your nose, no air comes out and you cannot hum. It is possible to hum for a short time with your nose plugged, but you will be unable to do so for very long or at any volume.
Air inhaled through the mouth is not as clean as air inhaled through the nose. Reason for this is that when we inhale air through our nose than it get filtered by hair present in our nose. But air inhaled through our mouth goes directly in without any filtration.
Air enters the the respiratory tract through either the nose or mouth.
Through your nose and mouth.
mucous and nose hair.