The answer to 'how does humidifier work' is that a humidifier is a device that adds moisture to the air in a home or building. It works by drawing in dry air, passing it over or through a wet wick, filter, or plate, and then releasing the now-moisturized air back into the room. This increases the humidity, or moisture content, of the air, which can help alleviate various issues like dry skin, static electricity, and respiratory problems.
Humidifiers come in different types, such as evaporative, steam, and ultrasonic, each with its own mechanism for adding moisture to the air. They are typically used during the drier winter months when indoor air can become excessively dry, but can also be used year-round in arid climates. Proper maintenance, such as regularly cleaning the unit and replacing filters, is important for the humidifier to function effectively and safely.