A humidifier is a device that helps to increase the humidity, or water vapor content, of the air. There are two main types of humidifiers: warm mist and cool mist. Each type has its own set of pros and cons that you should consider before purchasing a humidifier.
Warm mist humidifiers operate by heating water to create steam. The steam is then released into the air, where it quickly evaporates and increases the humidity levels. One benefit of using a warm mist humidifier is that the heating element can help to kill any bacteria or viruses that may be present in the water. This makes them a good choice for people with allergies or asthma. However, warm mist humidifiers can be more expensive to operate than cool mist humidifiers and they can also be a fire hazard if not used properly.

Cool mist humidifiers work by using a fan to blow air over a wet wick, filter, or pad. The evaporation of the water increases the humidity levels in the air. Cool mist humidifiers are typically less expensive to operate than warm mist humidifiers and they are also much safer to use. However, they can be more difficult to clean and they may not be as effective at killing bacteria and viruses.
So, which type of humidifier is right for you? That depends on your needs and preferences. If you have allergies or asthma, a warm mist humidifier may be a good choice. If you are on a budget or are concerned about safety, a cool mist humidifier may be a better option.