Humidifier is a machine that adds water or moisture to the air. It helps to keep the air in our room or house from being too dry which can make our skin dry and itchy, give us a sore throat, and make it hard to breathe. When we turn on a humidifier, it blows water droplets into the air, just like the way a sneeze sprays out lots of tiny water droplets. But don't worry, it's not germy like a sneeze! Humidifiers can be especially helpful during cold and flu season when our noses may get stuffy and dry because of the heating system. There are different types of humidifiers - some use steam while others use a filter to help distribute moisture into the air. It's important to clean humidifiers by changing the water regularly and washing the parts so that they don't become a breeding ground for germs. Humidifiers can be a great addition to our homes, but it's important to use them safely and properly.