The type of humidifier is also important, and each type has its pros and cons.
Vapouriser humidifiers can be used with medical inhalants to alleviate coughs, and are very cheap and affordable. However, they consume a lot of energy and increase electricity bills. Additionally, the heat source in poorly designed humidifiers can overheat, causing it to melt, leak, or even start fires. They are also difficult to clean, and generally unsafe for use in children’s rooms.
Evaporative humidifiers don’t involve heating, so they’re safer to use in homes with kids. They’re also affordable and self-regulating, adjusting itself to surrounding humidity levels, making them easy to use. However, they tend to be noisy due to the fan inside, and because the water that’s used is stagnant and not boiled, there’s the risk of bacterial infection. Additionally, the wicks can become mouldy easily if they are not dried out completely between refills, and can become saturated with mineral deposits over time. They regularly need cleaning or replacement, otherwise the humidifier stops functioning.
Ultrasonic humidifiers are energy-efficient and low in energy costs, and they’re also quiet and great for use in bedrooms or as a humidifier for baby rooms. There’s also no danger of burns because they use ultrasonic vibrations to convert water into mist. However, they are generally more expensive and if not cleaned regularly, the water tank can become a harbour for bacterial contamination.