State whether the following statements are true or false:
$(1)$ Mist is produced by particles of spread liquid and by condensation of vapour in air.
$(2)$ Particulate matter of size up to $5 \ \mu m$ reaches directly into the lungs.
$(3)$ Ozone and nitric oxide cause irritation in the nose and throat.

(N/A) $(1)$ True: Mist is formed by particles of spread liquid and by condensation of vapour in air.
$(2)$ False: Particulate matter of size up to $5 \ \mu m$ is trapped in the nasal passage,whereas particulate matter of size less than $1 \ \mu m$ reaches directly into the lungs.
$(3)$ True: Ozone and nitric oxide are known to cause irritation in the nose and throat.