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Winter can bring a rash of dry skin, sinus congestion and scratchy throats to your household. Running a humidifier to achieve a just-right humidity level—between 30 and 50 percent— and can help you avoid these as well as asthma flare-ups and common cold-and-flu related symptoms. But not all humidifiers are created equal, and each type carries its own advantages. Ultrasonic humidifiers use agitators that vibrate at a supersonic frequency to create a fine mist. Generally these humidifiers have no filters to change and tend to be quieter. Evaporative humidifiers use a fan to blow air over a moist wick, which creates evaporation and an increase in humidity. These models prevent over humidifying and don’t leave white dust. Warm mist humidifiers carry an advantage of killing waterborne bacteria or mold during the boiling process. This keeps allergens from entering the air–and your lungs. Humidifiers for allergies are also great for people with sensitivities. Replacing your humidifier filter
keeps your humidifier running efficiently. While you compare humidifiers, see our trusted humidifier reviews for added peace of mind, and browse our humidifiers for sale below.