Humidifiers

Humidifiers can improve the quality of air in your home during the winter. Keep the level of humidity below 50% to prevent the growth of molds, spores and dust mites. Take proper care of your humidifier so that you don't increase the pollution levels in your home.
Clean water reserves often
Follow the manufacturer's instructions for care and cleaning, especially in places where condensation occurs like pans or coils
Don't let water sit. Fill the humidifier with clean or distilled water right before you use it and empty the water when the mechanism is turned off.
Run humidifiers only at night when the heater is running to avoid excess humidity.
Don't run humidifiers in rooms with the door shut.