Read the passage below:The human nose is a vital organ that plays a crucial role in our sense of smell and overall health. It contains tiny hair-like structures called cilia, which help to filter out dust, bacteria, and other small particles from the air we breathe. The nose also contains specialized cells called olfactory receptors, which are responsible for detecting different odors and sending signals to the brain.What is the primary function of the cilia in the human nose?