Evaporative cool-mist humidifiers use absorbent paper wicks that should be replaced at least once per season, more often if your humidifier is contantly running. Wicks can grow bacteria, mold and mildew which may be introduced into the air if not replaced on a regular basis. Choose a humidifier based on the size of your room. The larger your humidifier is relative to your room size, the less frequently you will need to refill the water tanks. |
