Final answer:
Passover humidifiers work by passing air over a wet surface, allowing it to absorb moisture and help in easing respiratory discomfort by thinning mucus.
Step-by-step explanation:
Passover humidifiers work by B. Passing air over a wet surface, which allows the air to pick up moisture before it is delivered, for example, through a nasal cannula or a mask to the patient. This simple humidification process does not heat or ultrasonically vibrate the water. It relies on the natural process of air absorbing moisture from a wetted medium as it passes over it. This can help to make breathing feel easier and more comfortable, particularly in cases of respiratory infections, by helping to loosen and thin mucus in the respiratory system.