Question

Breathing through nose is better than breathing through mouth? Why?

Answer 1

While breathing through nose, the air gets filtered and the dust particles get stuck in the hair and mucus present in the nostrils...Whereas while breathing through mouth, the air remains unfiltered and the dirt might get to our lungs. 

Answer 2

Answer:

$\large\mathsf{\underbrace\purple{Answer}}$

One should Always breathe Through nose because when air passes through nasal passage, it becomes moist and warmed upto body temperature, Dust, Smoke Particles pollutes, Microbes, that enters with inhaled hair are tripped by the Hair of Nasal Passage. Thus, A clean and filtered are entered the Lungs.