What should humidifiers be considered in relation to mold growth?

Humidifiers should be considered a potential source of mold growth due to their ability to increase moisture levels in the air. Mold thrives in environments where humidity is elevated, typically above 60%. When humidifiers are used, especially without proper monitoring, they can create the ideal conditions for mold spores to proliferate. While they can be beneficial for maintaining comfortable humidity levels, an excessive or incorrect use can lead to an increase in mold growth. Therefore, it's crucial to maintain appropriate humidity levels and ensure that the humidifiers are clean and well-maintained to minimize the risk of mold development.