inside the nose, tiny hairs clean the air by catching dirt and other particles. the air also warms as it travels through the nose.
Cilia inside the nose filter the air for most dust, allergens, viruses, and bacteria.
By expanding them, you create a vacuum inside them; given a portal (your mouth, nose), the vacuum will pull the ambient air in, just as a vacuum cleaner pulls things inside by creating a vacuum.
the air has to go through your nose and the hair in your nose cleans the dust and every thing thatsshouldn't get into your nose and your system!!
That can happen anytime that you blow your nose too hard, it is a normal response for the ear, because the air pressure inside the ear changes when you blow your nose, especially if you hold your nose closed or if you are congested, and that change in air pressure can cause dizziness. If it becomes frequent, see a doctor.
We sneeze when something irritates the inside of our nose. Say there's a lot of dust in the air. When you breathe in through your nose, the dust particles go inside along with the air. Once inside, they get caught in a sticky layer of mucus that lines the inside of your nose. Usually, tiny hairlike projections called cilia move this layer of mucus toward the back of your nose where it's eventually swallowed. But, if some of the dust bothers any of the sensitive nerves inside your nose, you suddenly feel a tickle inside your nose, triggering a sneeze. Immediately, your nose starts making more mucus, you take in a big breath of air, your eyes close, and your head tips back. Then, your lungs forcefully release the air, causing it to burst out of your mouth and nose. The sudden burst of air dislodges or completely removes the irritating particles in your nose, relieving the tickle and protecting your body from the possibly harmful particles.
by pointing and saying "there is air inside this thing"
Yes, the vessels inside your nose warm the air you inhale.
mucus
The air pressure inside the bottle will increase as more air is filled up inside. This is because the air molecules are compressed, resulting in higher pressure.
The turbinates are the bony structures inside the nose that help moisten and filter the air before it enters the trachea. They are lined with mucous membranes that trap particles and add moisture to the air.
Not all people breathe through the nose. There happen to be a lot of mouth - breathers but people who breathe out of their nose are more common.
Weather is a mix of things that happen from day to day in the air around Earth.