Aromahouse Specially-formulated ultrasonic Diffuser Cleaning Tablets revitalize and extend the life of any ultrasonic diffuser. Over time with regular use, diffusers accumulate minerals and deposits left over from tap water and essential oils. Those deposits can reduce or even completely stop your diffuser's ability to generate mist. With proper cleaning, impurities in the water including viruses, fungi and bacteria will be removed. You can then diffuse your favorite essential oils with confidence. Most manufacturers recommend cleaning your diffuser regularly to remove impurities. When used regularly, AromaHouse Clean Tabs makes it easy to keep your diffuser working like new so you can enjoy all its healthful benefits and get the full effect and pleasure from essential oil and aromatherapy.