Removes dust and indoor air pollutants from around the home, office, spa and more to create clean and hygienic air. Using the aromatherapy tray the humidifier can also release a rejuvenating and soothing fragrance that refreshes and improves the indoor air quality and ambiance of any space. Humidifiers are recommended for those who suffer with: – Asthma/COPD – Allergens – Respiratory problems – Nosebleeds – Sinuses – Dry Skin